Error 500 오류 수정 방법?

[JammyDodger]

데이비드가 이제 메시지를 추가한 것 같습니다:

3.3.0.beta2-dev 업데이트 오류

Thanks for the reports! A command line rebuild is indeed the best solution. I’ve prepared this fix which will cause a message to be shown to people before they hit ‘update’ in the UI. Edit: now merged