Android Eclipse Error "android Packaging Problem"

I am getting an error in my Problems tab for my Android Project in Eclipse. The error is 'Android Packaging Problem' with an Unknown location. Unknown Error NullPointerExceptio

Solution 1:

I was confronted with this problem too, and I solve it by clicking Menu->Project->Clean. The error goes away after cleaning the project.

Solution 2:

I had a similar error - but instead of a NullPointerException it was an InvalidoperationException from somewhere in Eclipse.

A Project > Clean solved that one too.

Solution 3:

Cleaning the project was not enough for me. I had to first remove a <classpathentry/> that specified the interface from the .classpath file and a <linkedResources>'s <link> to the same interface in the .project file before cleaning the project would remove the error.

Solution 4:

I had the same problem. I tried the clean up option but for some reason it still did not work. I copied my project and pasted it as a new project and that cleared it up for me.

Solution 5:

I had this same error in an imported project and cleaning was not helpful, however by deleting the library references in the .project and .classpath eclipse files, and then relinking things and cleaning, I was able to get things building again.