VSC - building custom sysimage runs endless

I tried the experimental: Building custom sysimage
First I create a directory, with an empty .jl-file.
Then run: “Tasks: run build Tasks” and see this:

For a few moments everythig seems to be OK.
No, errors, no warnings, no problems…but it runs “endless” (I break it after 30minutes)

My error ?

Julia 1.7.3

Problem solved.
I forgot to actviate an environment and generate a project in the
directory (I feel a little stupid).
But now the sysimage are generated correct, :grinning: