macOS, is my app active?

[hh]

> Klaus M. wrote:
> Still -> execution error

It works here in the IDE on MacOS 10.14.6 and 10.15.1 using LC 9.5.0. or LC 8.1.10. (I stopped using unstable LC versions a while ago).
Did you try from the IDE?

If it is from the standalone only you could also try to use osascript
via shell:

get shell("osascript " & <file.scpt>)
or use "osascript -e " for direct input.

Works all here...