I have tested a lot more.
First i start B4a und load my project, then i connect the B4a Bridge and then i compile and start my app.
At this moment everything works as it schould.
Now when i load or create a new empty Project, save it, comile and start it..... i get the parsing error message on the Raspberry Pi.
I close B4a.
I start B4a and load or create a new Project, connect the B4a Bridge and then compile and start the new app.
Again everything works as it should.
Now when i load my Project, comile and start it..... i get the error message about parsing error again on the Raspberry Pi.
This was the behavior since my first post in this thread.
I didn`t change anything, now i can load and compile every project without any Errors.
I don`t understand that behavior.