title: Unable to execute dex: Multiple dex files define Lcom/facebook/android/R$drawable;
body: <p>There are several existing questions on this, but none of the solutions seem to work for me.</p>
  
  <p>I want to white label my app.  The first step is to go to the project's properties and mark the project a Library Project.</p>
  
  <p>Then, create a new Android Application Project, open properties, and add your Library Project to the Library section of the Android tab.</p>
  
  <p>When I try to compile, I get the error:</p>
  
  <p><code>Unable to execute dex: Multiple dex files define Lcom/facebook/android/R$drawable;</code></p>
  
  <p>My app uses the Facebook library (not in the form of a jar).  The attached screenshot shows what my workspace looks like.  com_facebook_android, and another library called wheel, are not in my top project's (library project) libs folder, but they are added as libraries in properties.  I think I tried to move them there once and ran into a whole bunch of problems.  The app is functioning fine without them in there so I left it.  I'm not sure if this is the problem or not.</p>
  
  <p>Could someone point me in the right direction?  Despite the existing questions on stackoverflow, I haven't been able to figure out how to make this work.</p>
  
  <p><img src="https://i.stack.imgur.com/SQGNU.png" alt="enter image description here"></p>
  
  <p>UPDATE:</p>
  
  <p>I've almost solved the problem.  I went about adding my Library Project to WhitelabelTest a different way.</p>
  
  <p>I had originally gone to WhitelabelTest > Properties > Android > Library > and added my Library Project to the list.  I removed this.</p>
  
  <p>Instead, I went into the bin folder for my Library Project, copied the jar file (we'll call it LibraryProject.jar) and pasted it into the /libs folder of WhitelabelTest.  I then right clicked LibraryProject.jar > Build Path > Add to Build Path.</p>
  
  <p>This allowed me to compile the WhitelabelTest project and have it install onto my emulator.</p>
  
  <p>However, when the application launched, I received the following crash:</p>
  
  <pre><code> FATAL EXCEPTION: main
   java.lang.RuntimeException: Unable to instantiate application com.example.whitelabeltest.WhitelabelTest: java.lang.ClassNotFoundException: com.example.whitelabeltest.WhitelabelTest in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/data/app/com.example.whitelabeltest-1.apk]
      at android.app.LoadedApk.makeApplication(LoadedApk.java:466)
      at android.app.ActivityThread.handleBindApplication(ActivityThread.java:3260)
      at android.app.ActivityThread.access$2200(ActivityThread.java:117)
      at android.app.ActivityThread$H.handleMessage(ActivityThread.java:969)
      at android.os.Handler.dispatchMessage(Handler.java:99)
      at android.os.Looper.loop(Looper.java:130)
      at android.app.ActivityThread.main(ActivityThread.java:3683)
      at java.lang.reflect.Method.invokeNative(Native Method)
      at java.lang.reflect.Method.invoke(Method.java:507)
      at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:839)
      at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:597)
      at dalvik.system.NativeStart.main(Native Method)
   Caused by: java.lang.ClassNotFoundException: com.example.whitelabeltest.WhitelabelTest in loader dalvik.system.PathClassLoader[/system/framework/com.google.android.maps.jar:/data/app/com.example.whitelabeltest-1.apk]
      at dalvik.system.PathClassLoader.findClass(PathClassLoader.java:240)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:551)
      at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
      at android.app.Instrumentation.newApplication(Instrumentation.java:942)
      at android.app.LoadedApk.makeApplication(LoadedApk.java:461)
      ... 11 more
  </code></pre>
  
  <p>Perhaps this is because my /src folder in WhitelabelTest is completely empty?  I've added no new source code to WhitelabelTest.  I'm purely attempting to import my Library Project into a new Android Application Project so I can share the code and just update a few drawables in /res.</p>