이클립스 설치 에러들(ERROR: org.eclipse.equinox.p2.engine code=4 An error occurred during the org.eclipse.equinox.internal.p2.engine.phases.CheckTrust phase, please choose another workspace as)

1. 이클립스 삭제 후 재설치 시 발생하는 에러

 - ERROR: org.eclipse.equinox.p2.engine code=4 An error occurred during the org.eclipse.equinox.internal.p2.engine.phases.CheckTrust phase.

 

내 문서의 .eclipse, .m2, .p2 폴더 삭제

2. 프로젝트 선택 시 발생하는 에러

- please choose another workspace as

 

해당 프로젝트의 metadata폴더 삭제