[UPDATE, SOLVED]I can't open Dorico 1 or 2 Pro since I installed the later

[AlvaroALorite]

@Ulf

Also sorry from my side, this thread somehow slipped out of my sight…

Regarding the error message “Can’t read hook config resource”, this is something I have never seen and also a Google search does not bring up anything sensible, because it only brings up search results for pages that contain any of the mentioned words, but never the whole phrase. So I also wonder where that error message comes from.

Do as Paul suggests, just run the VSTAudioEngine2 app alone and see if the error message still comes up.

Also, the audio engine will only show a splash screen for a few seconds and after that has no UI because it runs in the background. So please start Activity Monitor and in the list of processes have look for an item “VST Audio Engine”. Highlight it and then at the top of the Activity Monitor window is a little cog wheel; click on that and choose “Spindump”.
Please send the dump to ‘u dot stoermer at steinberg dot de’.

I have updated the thread. I found the solution, I put it there. Thanks for your help!