Eclipse: “The import java.io cannot be resolved”

Question

I have several Android projects in Eclipse, and all is fine, except one (a library) that can not resolve any imports.

The java.io imports do resolve fine in other An

Answer 1

The following worked for me:

• Close the project and reopen it.

OR

• Clean the project ( = rebuilds the buildpath and thereby reconfigures the JDK libraries).