package android.support.v4.util does not exist

Question

Since the last update for android support libraries, I am having issues with importing LruCache. Eclipse, and now even android studio, keep saying that package android.suppo

Answer 1

Go to your Android SDK's directory and:

jar tvf ./extras/android/support/v13/android-support-v13.jar |grep v4.*util

And within this jar file you can see one of the classes (under v4/util) you have used in your applications.

     0 Wed Mar 26 20:29:48 SGT 2014 android/support/v4/util/
  3373 Wed Mar 26 20:29:48 SGT 2014 android/support/v4/util/ArrayMap.class
  5329 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/MapCollections.class
  1625 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/ContainerHelpers.class
  3677 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/MapCollections$KeySet.class
  1220 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/DebugUtils.class
  3435 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/AtomicFile.class
  1287 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/LogWriter.class
  3701 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/MapCollections$ValuesCollection.class
  4446 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/MapCollections$EntrySet.class
  5910 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/SparseArrayCompat.class
  3273 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/TimeUtils.class
  5776 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/LongSparseArray.class
  5680 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/LruCache.class
  3341 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/MapCollections$MapIterator.class
  1575 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/MapCollections$ArrayIterator.class
  2439 Wed Mar 26 20:29:48 SGT 2014 android/support/v4/util/ArrayMap$1.class
  8611 Wed Mar 26 20:29:46 SGT 2014 android/support/v4/util/SimpleArrayMap.class

So the error "package android.support.v4.util does not exist" simply means you have to copy the above jar file to your libs subdirectory and recompile.