Sonic Halion SE missing in Nuendo 11

[Wild_squirell]

Hi everybody,
I saw various similar posts but I didn’t find an answer so I start a new thread.
I have Nuendo 11. today, trying to open some old project, I received an error message : "The plug-in “HALion Sonic SE” could not be found for Instrument Track "
I searched for the plugin in the location showed in the plugin manager but it seems to be completely missing…
I tried reinstalling Halion via Steinberg Download assistant, but it didn’t solve my problem.

Can someone help me?

[steve]

@Wild_squirell

“HALion Sonic SE” could not be found

@Wild_squirell

I tried reinstalling Halion via Steinberg Download assistant,

Did you actually try to install HALion Sonic SE? That’s what you need, according to the error. Or did you install Halion?

[Wild_squirell]

I installed HALion Sonic SE again, but it doesn’t work in Nuendo. Then I tried to run it in standalone mode and saw an error . Windows 10, PC