eclipse An internal error occurred during: "Refreshing external folders". java.lang.NullPointerException

2
votes

I'm using Eclipse Helios. I get the following error randomly shows in my workspace.

An internal error occurred during: "Refreshing external folders". java.lang.NullPointerException

eclipse internal error: null pointer exception

I've tried: - clean the project using menu Project > Clean .. - close and reopen workspace - restart eclipse but none of these can resolved the problem.

How do I resolve this problem?

2
eclipseide
@JonathonReinhart That's definitely a different problem. In my case, the error message shows in popup window instead of console, that's not compile/logic error. – nametal
Look at the .log file in the workspace .metadata folder to see if there is a message there. – greg-449
@nametal You're right - I got a bit trigger-happy on the close. I've retracted my vote. – Jonathon Reinhart
@JonathonReinhart anyway, does anyone face the same problem?? can you give me the solution, please.. – nametal
I have seen that before but it never seems to break anything that I have noticed. My theory is it may have to do with versions of Subclipse prior to 1.7 and the new working copy format. I could be wrong though, I have never been able to track that one down even with the error log view. – user439793

2 Answers

0
votes

Even though it was the old post, this answer will helpful for someone.

Try to close and open the project, refreshed project get fixed the NullPointerException in my case.

Even though error is not getting fixed, close the project -> close eclipse -> open eclipse -> open project may fix your NullPointerException.

0
votes

In my case I have edited the eclipse.ini file and set the Java version to the same one used in the project.

This file is in the eclipse folder.