Android Project error on Eclipse

Question

My android pojects in eclipse suddenly had errors on root level but cannot be traced... It only show the error icon but no error on the codes. How do I fix this?

Answer 1

Try refreshing the project (click on the project node and press F5 [Fn + F5 on mac]). Then press the Project menu (top menu bar) --> Clean --> Select checkbox for your project --> OK.

See if that fixes for you.

Answer 2

尝试刷新或清理项目，重新启动eclipse。如果它不起作用，请尝试重新启动计算机。如果仍然出现此错误，请创建新项目并将所有内容从旧复制到新。

Answer 3

Check windows --> Preferences --> (on Left side) Android --> reset the SDK location

It might solve your problem.

Answer 4

Have you tried deleting your debug keystore? Sounds like it may have expired.

See this answer .