How to add external library in IntelliJ IDEA?

intellij-idea
sandalone picture sandalone · Aug 15, 2011 · Viewed 172.7k times · Source

I am trying to add external library (places it in the /libs directory) to my project. When I try to use the methods from that library, I see that they are in red color which means that the library is not recognized. When I click Ctrl+B, I get a message "Cannot find declaration to go to".

I use these steps to add a library (JAR file): 1. copy the library file into /libs dir 2. open Project Structure -> Global Libraries -> Attach clases 3. find the library and click ok

Is this proper way to do it?

PS. I am trying to add AdMob .jar file this way.

Answer

German picture German · Apr 12, 2013

Easier procedure on latest versions:

  • Copy jar to libs directory in the app (you can create the directory it if not there)
  • Refresh project so libs show up in the structure (right click on project top level, refresh/synchronize)
  • Expand libs and right click on the jar
  • Select "Add as Library"

Done

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