8.3 update fails on OSX

Having a problem with the 8.3 update on 10.12.6 OSX.

here’s the tail end of the install.log:

Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Groove Agent Common/GA Sub Presets/MIDI/Pattern Bank/Rock Pop Toolbox, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#Rock%20Pop%20Toolbox%20MIDI%20Files.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Groove Agent Common/GA Sub Presets/MIDI Files/Rock Pop Toolbox, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#RetrologueSubPresets.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Retrologue/Sub Presets, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#PadshopSubPresets.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Padshop/Sub Presets, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_Padshop.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/Padshop/VST Sound, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_GrooveAgentONEAcoustic.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_GrooveAgentONEMain.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_GrooveAgentONEBeatboxes.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_LoopMash01.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:43 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_LoopMash02.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#nuendo8_vstsound_REVerenceMusic.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#nuendo8_vstsound_REVerencePost.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_DrumLoopExp01.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_SpeakerIR.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_BassSpeakerIR.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_SequelContent000.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_EDMToolbox.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsound_Caleidoscope.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsounds_Production%20Grooves.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsounds_HALion%20Sonic%20SE%20Flux%20Synth.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#Steinberg%20Upload%20Manager.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#Nuendo%208.3%20AEPPScripts.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Audio Export Post Process Scripts, uid=0)
Oct 10 23:27:44 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#eucon_appsets.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/EuCon/AppSets, uid=0)
Oct 10 23:27:45 MacBook-Pro installd[450]: PackageKit: Extracting file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsounds_VST%20Sound%20Updates.pkg (destination=/Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root/Library/Steinberg/Content/VST Sound/VST Sound Updates, uid=0)
Oct 10 23:27:45 MacBook-Pro installd[450]: PackageKit: prevent user idle system sleep
Oct 10 23:27:45 MacBook-Pro installd[450]: PackageKit: suspending backupd
Oct 10 23:27:45 MacBook-Pro installd[450]: PackageKit: Using system content trashcan path /Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Trashes for sandbox /Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox
Oct 10 23:27:45 MacBook-Pro installd[450]: PackageKit: Shoving /Volumes/Libraries/.PKInstallSandboxManager/56D36A25-BBD8-487D-B2D1-1048FA0E0379.activeSandbox/Root (1 items) to /Volumes/Libraries
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Executing script "./postinstall" in /private/tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halionsonicseadvancedcontent.lZmkMc
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_001_HS_Synths_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_001_HS_Synths_01.vstsound" does not exist, too. "FCP_SMT_001_HS_Synths_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_004_HS_Accordion_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_004_HS_Accordion_01.vstsound" does not exist, too. "FCP_SMT_004_HS_Accordion_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_005_HS_Blues_Harp_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_005_HS_Blues_Harp_01.vstsound" does not exist, too. "FCP_SMT_005_HS_Blues_Harp_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_008_HS_El_Guitar_02.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_008_HS_El_Guitar_02.vstsound" does not exist, too. "FCP_SMT_008_HS_El_Guitar_02.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_010_HS_Ac_Guitar_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_010_HS_Ac_Guitar_01.vstsound" does not exist, too. "FCP_SMT_010_HS_Ac_Guitar_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_016_HS_Choir_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_016_HS_Choir_01.vstsound" does not exist, too. "FCP_SMT_016_HS_Choir_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_025_HS_Vintage_Bass_FW_Fing_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_025_HS_Vintage_Bass_FW_Fing_01.vstsound" does not exist, too. "FCP_SMT_025_HS_Vintage_Bass_FW_Fing_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_026_HS_Vintage_Bass_FW_Fing_Add_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_026_HS_Vintage_Bass_FW_Fing_Add_01.vstsound" does not exist, too. "FCP_SMT_026_HS_Vintage_Bass_FW_Fing_Add_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_027_HS_Vintage_Bass_FW_Pick_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_027_HS_Vintage_Bass_FW_Pick_01.vstsound" does not exist, too. "FCP_SMT_027_HS_Vintage_Bass_FW_Pick_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_028_HS_Vintage_Bass_FW_Pick_Add_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_028_HS_Vintage_Bass_FW_Pick_Add_01.vstsound" does not exist, too. "FCP_SMT_028_HS_Vintage_Bass_FW_Pick_Add_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_047_HS_Tonewheel_Organ_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_047_HS_Tonewheel_Organ_01.vstsound" does not exist, too. "FCP_SMT_047_HS_Tonewheel_Organ_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_048_HS_Pipe_Organ_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_048_HS_Pipe_Organ_01.vstsound" does not exist, too. "FCP_SMT_048_HS_Pipe_Organ_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_050_HS_El_Piano_Suitcase_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_050_HS_El_Piano_Suitcase_01.vstsound" does not exist, too. "FCP_SMT_050_HS_El_Piano_Suitcase_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_051_HS_El_Piano_MKI_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_051_HS_El_Piano_MKI_01.vstsound" does not exist, too. "FCP_SMT_051_HS_El_Piano_MKI_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_052_HS_El_Piano_200A_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_052_HS_El_Piano_200A_01.vstsound" does not exist, too. "FCP_SMT_052_HS_El_Piano_200A_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_059_HS_Strings_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_059_HS_Strings_01.vstsound" does not exist, too. "FCP_SMT_059_HS_Strings_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_060_HS_Brass_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_060_HS_Brass_01.vstsound" does not exist, too. "FCP_SMT_060_HS_Brass_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_063_HS_Winds_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_063_HS_Winds_01.vstsound" does not exist, too. "FCP_SMT_063_HS_Winds_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_064_HS_Sax_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_064_HS_Sax_01.vstsound" does not exist, too. "FCP_SMT_064_HS_Sax_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_072_HS_Trumpet_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_072_HS_Trumpet_01.vstsound" does not exist, too. "FCP_SMT_072_HS_Trumpet_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_073_HS_Muted_Trumpet_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_073_HS_Muted_Trumpet_01.vstsound" does not exist, too. "FCP_SMT_073_HS_Muted_Trumpet_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_074_HS_Trombone_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_074_HS_Trombone_01.vstsound" does not exist, too. "FCP_SMT_074_HS_Trombone_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_075_HS_GM_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_075_HS_GM_01.vstsound" does not exist, too. "FCP_SMT_075_HS_GM_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_079_HSSE_Pro.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_079_HSSE_Pro.vstsound" does not exist, too. "FCP_SMT_079_HSSE_Pro.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_081_HSSE_Artist.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_081_HSSE_Artist.vstsound" does not exist, too. "FCP_SMT_081_HSSE_Artist.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_083_HSSE_S90.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_083_HSSE_S90.vstsound" does not exist, too. "FCP_SMT_083_HSSE_S90.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_085_HSSE_SR_OneSoundzSilver.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_085_HSSE_SR_OneSoundzSilver.vstsound" does not exist, too. "FCP_SMT_085_HSSE_SR_OneSoundzSilver.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_087_HSSE_VST_Expression.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_087_HSSE_VST_Expression.vstsound" does not exist, too. "FCP_SMT_087_HSSE_VST_Expression.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_100_HSSE_Artist_Drum.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_100_HSSE_Artist_Drum.vstsound" does not exist, too. "FCP_SMT_100_HSSE_Artist_Drum.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Executing script "./postinstall" in /private/tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halionsonicseadvancedpresets.31fmwO
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_076_HSSE_Artist_Instrument_Presets_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_076_HSSE_Artist_Instrument_Presets_01.vstsound" does not exist, too. "FCP_SMT_076_HSSE_Artist_Instrument_Presets_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_077_HSSE_Pro_Instrument_Presets_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_077_HSSE_Pro_Instrument_Presets_01.vstsound" does not exist, too. "FCP_SMT_077_HSSE_Pro_Instrument_Presets_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_078_HSSE_GM_Presets_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_078_HSSE_GM_Presets_01.vstsound" does not exist, too. "FCP_SMT_078_HSSE_GM_Presets_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_080_HSSE_Pro_Presets.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_080_HSSE_Pro_Presets.vstsound" does not exist, too. "FCP_SMT_080_HSSE_Pro_Presets.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_082_HSSE_Artist_Presets.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_082_HSSE_Artist_Presets.vstsound" does not exist, too. "FCP_SMT_082_HSSE_Artist_Presets.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_084_HSSE_S90_Presets.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_084_HSSE_S90_Presets.vstsound" does not exist, too. "FCP_SMT_084_HSSE_S90_Presets.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_086_HSSE_SR_OneSoundzSilver_Presets.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_086_HSSE_SR_OneSoundzSilver_Presets.vstsound" does not exist, too. "FCP_SMT_086_HSSE_SR_OneSoundzSilver_Presets.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_088_HSSE_VST_Expression_Presets.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_088_HSSE_VST_Expression_Presets.vstsound" does not exist, too. "FCP_SMT_088_HSSE_VST_Expression_Presets.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_089_HSSE_Basic_Synth_Presets_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_089_HSSE_Basic_Synth_Presets_01.vstsound" does not exist, too. "FCP_SMT_089_HSSE_Basic_Synth_Presets_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_090_HSSE_Artist_Synth_Presets_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_090_HSSE_Artist_Synth_Presets_01.vstsound" does not exist, too. "FCP_SMT_090_HSSE_Artist_Synth_Presets_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_091_HSSE_Pro_Synth_Presets_01.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_091_HSSE_Pro_Synth_Presets_01.vstsound" does not exist, too. "FCP_SMT_091_HSSE_Pro_Synth_Presets_01.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_101_HSSE_Artist_Instrument_Presets_02.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_101_HSSE_Artist_Instrument_Presets_02.vstsound" does not exist, too. "FCP_SMT_101_HSSE_Artist_Instrument_Presets_02.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_121_HSSE_Artist_Instrument_Presets_03.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_121_HSSE_Artist_Instrument_Presets_03.vstsound" does not exist, too. "FCP_SMT_121_HSSE_Artist_Instrument_Presets_03.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/VST Sound/FCP_SMT_139_HSSE_Artist_Synth_Presets_02.vstsound" does not exist.
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: "/Volumes/Nuendo 8 Update/Additional Content/Installer Data/FCP_SMT_139_HSSE_Artist_Synth_Presets_02.vstsound" does not exist, too. "FCP_SMT_139_HSSE_Artist_Synth_Presets_02.vstsound" cannot be installed.
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Executing script "./postinstall" in /private/tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halion6basiccontrols.zF5Ydv
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: Copying FCL_SMT_222_Basic_Controls.vstsound to /Volumes/Libraries/Library/Steinberg/Content/HALion/VST Sound/FCL_SMT_222_Basic_Controls.vstsound
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: /tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halion6basiccontrols.zF5Ydv/postinstall:130:in `symlink': File exists - (/Volumes/Libraries/Library/Steinberg/Content/HALion/VST Sound/FCL_SMT_222_Basic_Controls.vstsound, /Library/Application Support/Steinberg/Content/HALion/VST Sound/FCL_SMT_222_Basic_Controls.vstsound) (Errno::EEXIST)
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: 	from /tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halion6basiccontrols.zF5Ydv/postinstall:130:in `install_vstsound'
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: 	from /tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halion6basiccontrols.zF5Ydv/postinstall:167:in `checkAndInstallVSTSound'
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: 	from /tmp/PKInstallSandbox.MzswQm/Scripts/net.steinberg.vstsounds.halion6basiccontrols.zF5Ydv/postinstall:203:in `<main>'
Oct 10 23:27:48 MacBook-Pro installd[450]: ./postinstall: Creating symlink in /Library/Application Support/Steinberg/Content/HALion/VST Sound
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: releasing backupd
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: allow user idle system sleep
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Install Failed: Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “Nuendo 8 Update.pkg”." UserInfo={NSFilePath=./postinstall, NSURL=file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsounds_HALion%206%20Basic%20Controls.pkg, PKInstallPackageIdentifier=net.steinberg.vstsounds.halion6basiccontrols, NSLocalizedDescription=An error occurred while running scripts from the package “Nuendo 8 Update.pkg”.} {
	    NSFilePath = "./postinstall";
	    NSLocalizedDescription = "An error occurred while running scripts from the package \U201cNuendo 8 Update.pkg\U201d.";
	    NSURL = "file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsounds_HALion%206%20Basic%20Controls.pkg";
	    PKInstallPackageIdentifier = "net.steinberg.vstsounds.halion6basiccontrols";
	}
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Running idle tasks
Oct 10 23:27:48 MacBook-Pro Installer[40722]: install:didFailWithError:Error Domain=PKInstallErrorDomain Code=112 "An error occurred while running scripts from the package “Nuendo 8 Update.pkg”." UserInfo={NSFilePath=./postinstall, NSURL=file://localhost/Volumes/Nuendo%208%20Update/Nuendo%208%20Update.pkg#vstsounds_HALion%206%20Basic%20Controls.pkg, PKInstallPackageIdentifier=net.steinberg.vstsounds.halion6basiccontrols, NSLocalizedDescription=An error occurred while running scripts from the package “Nuendo 8 Update.pkg”.}
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Removing client PKInstallDaemonClient pid=40722, uid=501 (/System/Library/CoreServices/Installer.app/Contents/MacOS/Installer)
Oct 10 23:27:48 MacBook-Pro installd[450]: PackageKit: Done with sandbox removals
Oct 10 23:27:50 MacBook-Pro Installer[40722]: Install failed: The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
Oct 10 23:27:50 MacBook-Pro Installer[40722]: IFDInstallController 4124A0 state = 8
Oct 10 23:27:50 MacBook-Pro Installer[40722]: Displaying 'Install Failed' UI.
Oct 10 23:27:50 MacBook-Pro Installer[40722]: 'Install Failed' UI displayed message:'The Installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.'.
Oct 10 23:31:07 MacBook-Pro Installer[40722]: Package Removal: Package is not in downloads directory. Not offering removal.
Oct 10 23:31:07 MacBook-Pro Installer[40722]: Package Removal: Package cannot be removed.

seems to go all wrong around the halion 6 basic controls package.

A lot of the library content is on an external drive, however this isn’t fazing the earlier part of the install, and the 8.3 binary has made it safely to the drive. I just don’t know what else is missing from this update after the failure.

Any ideas