Flutter project will not run on Android Studio after moving folders

问题

I'm using Android Studio.

I had a Flutter project on folder-a. I moved the contents of folder-a into folder-b and now...

• The Tools -> AVD Manager option is gone.
• The devices dropdown is gone on the top bar.
• The run button on the top bar is disabled.

What happened and how can I fix it? I heard there is an import project option but now that I moved the folders already, I cannot import from the current location. Also, I would like to understand why my project does not work after moving folders.

来源：https://stackoverflow.com/questions/59672551/flutter-project-will-not-run-on-android-studio-after-moving-folders