Eclipse cannot create runnable jar - No resources selected

Question

When I try to export my project as a runnable jar Eclise gives me the following error:

No resources selected.

The project runs fine within Eclipse, I already

Answer 1

I continued to get the "no resources selected" error. I then did the procedure I am quoting and it gave me a MANIFEST file. Then I was able to create an executable JAR.

Quoting: "I exported the project as an archive file. Then I opened up a new workspace and imported the the archived project. After that I tried to export the project as a runnable jar, after two tries the jar runs as is it should."