转到您的 Android SDK 目录并:
jar tvf ./extras/android/support/v13/android-support-v13.jar |grep v4.*util
在这个 jar 文件中,您可以看到您在应用程序中使用的类之一(在 v4/util 下)。
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
所以错误“android.support.v4.util 包不存在”仅仅意味着你必须将上面的 jar 文件复制到你的 libs 子目录并重新编译。