Fully corrupted workspace in eclipse

Thanking after cursing seems weird but here is answer:

Eclipse errors can be persistent. Exit Eclipse and then re-run Eclipse. From the Eclipse menu, select Project, Clean. Finally select Run (even if you have errors) to clear out any remaining false errors.

if(solution above does not solve) {

Download fresh eclipse.

Copy and paste your codes(not files) into the to-be-newly created project-classes inside. Enter the necessary path variables from project settings. Then save/run. If still error happens, look inside codes and plugin settings.

Check for other projects that are using same resources.(could be the issue)

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