Questions about Recyclerview not found in eclipse

After introducing the V7 package directly into eclipse, we could not find the recyclerview problem.

Sdk\extras\android\support\v7\recyclerview\libs this directory to find

If an error enters the sdk\extras\android\m2repository\com\android\support\recyclerview-v7\21.0.0 directory, Find Recyclerview-v7-21.0.0.aar this file. Unzip the file with Classes.jar, put the jar into the project's libs file. This jar package is recyclerview to use, you can change it to a name such as Android-support-v7-recyclerview.jar, easy to see.

　　

Questions about Recyclerview not found in eclipse