Why can't I read the library only when I check Copy to Workspace when I import existing projects into Eclipse on Android?
"·Do I have to specify ""external jar"" or ""pass"" or ""something"" for ""project"" somewhere?"
If you have a library in the relative path of an existing project, you must reconfigure the path.
Check the Android section of the project properties and the Java Build Path.
Right-click the project → Properties → Android and select the library that does not have a green check and delete it.
Then click Add to read the library again.
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