I am sorry but, not all forum user speak german ... I know I don't... so I don't have a clue of what that error is trying to say...
Please remember that you are in the international (english) part of the forum... and, although Code is always in english, logs are in the IDE selected language,...
My guess is there is a released compilation running on the background that didn't terminated correctly and you are trying to compile the app with same name.
I am sorry but, not all forum user speak german ... I know I don't... so I don't have a clue of what that error is trying to say...
Please remember that you are in the international (english) part of the forum... and, although Code is always in english, logs are in the IDE selected language,...
My guess is there is a released compilation running on the background that didn't terminated correctly and you are trying to compile the app with same name.