java.lang.NoSuchMethodException: generatePackageInfo

09-05 18:16:26.116 18473-18473/com.example.TestPlugin I/PackageParserApi21: get generatePackageInfo 1 failjava.lang.NoSuchMethodException: generatePackageInfo [class android.content.pm.PackageParser$Package, class [I, int, long, long, interface java.util.Set, class android.content.pm.PackageUserState, int]
at java.lang.Class.getConstructorOrMethod(Class.java:472)
at java.lang.Class.getMethod(Class.java:857)
at com.morgoo.droidplugin.reflect.MethodUtils.getAccessibleMethod(MethodUtils.java:143)
at com.morgoo.droidplugin.pm.parser.PackageParserApi21.generatePackageInfo(PackageParserApi21.java:190)
at com.morgoo.droidplugin.pm.parser.PluginPackageParser.getPackageInfo(PluginPackageParser.java:364)
at com.morgoo.droidplugin.pm.IPluginManagerImpl.getInstalledPackages(IPluginManagerImpl.java:548)
at com.morgoo.droidplugin.pm.PluginManager.getInstalledPackages(PluginManager.java:487)
at com.example.TestPlugin.InstalledFragment.onListItemClick(InstalledFragment.java:55)
at com.example.TestPlugin.InstalledFragment$3$1.onClick(InstalledFragment.java:174)
at android.view.View.performClick(View.java:4768)
at android.view.View$PerformClick.run(View.java:19073)
at android.os.Handler.handleCallback(Handler.java:755)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:145)
at android.app.ActivityThread.main(ActivityThread.java:5266)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:826)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:642)
at dalvik.system.NativeStart.main(Native Method)
09-05 18:16:26.126 18473-18473/com.example.TestPlugin I/HomeFragment: start: -----已安装插件
09-05 18:16:26.126 18473-18473/com.example.TestPlugin I/HomeFragment: start: -----path_plugin:/data/data/com.example.TestPlugin/Plugin/com.qqreader.schoollibrary/apk/base-1.apk