Resolve Eclipse Building Workspace (sleeping) Flicker

This is because of me, putting two wrong items. After removing from the project, and then running the new project, but the building workspace has not been executed, resulting in the new project can not be run.

This time you can turn off automatic compilation, you can run a new project.

Click Project, then uncheck build automatically. You can do it.

Of course, if you want to choose automatic compilation, you can restart eclipse. Click Project, tick build automatically, and it's no problem to run the new project again.

Build automatically for automatic compilation

Resolve Eclipse Building Workspace (sleeping) Flicker