我正试图用proguard缩小我的应用程序但是当我将minifyenabled设置为true时，我在应用程序启动时出现此错误。
知道什么可能是错的，因为没有它可以正常工作吗？
我只使用这些库，如果这有任何区别：
compile "com.android.support:appcompat-v7:${23.1.1}"
compile "com.android.support:cardview-v7:${23.1.1}"
compile "com.android.support:design:${23.1.1}"
compile "com.android.support:recyclerview-v7:${23.1.1}"
崩溃日志：
8754-8754/se.jsoft.xxxE/AndroidRuntime: FATAL EXCEPTION: main
Process: se.jsoft.xxx, PID: 8754
java.lang.RuntimeException: Unable to start activity ComponentInfo{se.jsoft.xxx/se.jsoft.xxx.activity.CategorySelectionActivity}: android.view.InflateException: Binary XML file line #3: Binary XML file line #3: Error inflating class android.support.v7.widget.RecyclerView
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2450)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5466)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #3: Binary XML file line #3: Error inflating class android.support.v7.widget.RecyclerView
at android.view.LayoutInflater.inflate(LayoutInflater.java:539)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at se.jsoft.xxx.b.a.a(Unknown Source)
at android.support.v4.b.u.b(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.k.run(Unknown Source)
at android.support.v4.b.ag.e(Unknown Source)
at android.support.v4.b.ac.o(Unknown Source)
at android.support.v4.b.x.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
at android.app.Activity.performStart(Activity.java:6268)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5466)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: android.view.InflateException: Binary XML file line #3: Error inflating class android.support.v7.widget.RecyclerView
at android.view.LayoutInflater.createView(LayoutInflater.java:645)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at se.jsoft.xxx.b.a.a(Unknown Source)
at android.support.v4.b.u.b(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.k.run(Unknown Source)
at android.support.v4.b.ag.e(Unknown Source)
at android.support.v4.b.ac.o(Unknown Source)
at android.support.v4.b.x.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
at android.app.Activity.performStart(Activity.java:6268)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5466)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.reflect.InvocationTargetException
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:619)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at se.jsoft.xxx.b.a.a(Unknown Source)
at android.support.v4.b.u.b(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.k.run(Unknown Source)
at android.support.v4.b.ag.e(Unknown Source)
at android.support.v4.b.ac.o(Unknown Source)
at android.support.v4.b.x.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
at android.app.Activity.performStart(Activity.java:6268)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5466)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.IllegalStateException: Binary XML file line #3: Unable to find LayoutManager android.support.v7.widget.GridLayoutManager
at android.support.v7.widget.RecyclerView.a(Unknown Source)
at android.support.v7.widget.RecyclerView.<init>(Unknown Source)
at android.support.v7.widget.RecyclerView.<init>(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:619)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at se.jsoft.xxx.b.a.a(Unknown Source)
at android.support.v4.b.u.b(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.k.run(Unknown Source)
at android.support.v4.b.ag.e(Unknown Source)
at android.support.v4.b.ac.o(Unknown Source)
at android.support.v4.b.x.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
at android.app.Activity.performStart(Activity.java:6268)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5466)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.GridLayoutManager" on path: DexPathList[[zip file "/data/app/se.jsoft.xxx-2/base.apk"],nativeLibraryDirectories=[/data/app/se.jsoft.xxx-2/lib/arm, /vendor/lib, /system/lib]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
at java.lang.ClassLoader.loadClass(ClassLoader.java:511)
at java.lang.ClassLoader.loadClass(ClassLoader.java:469)
at android.support.v7.widget.RecyclerView.a(Unknown Source)
at android.support.v7.widget.RecyclerView.<init>(Unknown Source)
at android.support.v7.widget.RecyclerView.<init>(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Native Method)
at android.view.LayoutInflater.createView(LayoutInflater.java:619)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:764)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:704)
at android.view.LayoutInflater.inflate(LayoutInflater.java:492)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at se.jsoft.xxx.b.a.a(Unknown Source)
at android.support.v4.b.u.b(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.ag.a(Unknown Source)
at android.support.v4.b.k.run(Unknown Source)
at android.support.v4.b.ag.e(Unknown Source)
at android.support.v4.b.ac.o(Unknown Source)
at android.support.v4.b.x.onStart(Unknown Source)
at android.app.Instrumentation.callActivityOnStart(Instrumentation.java:1238)
at android.app.Activity.performStart(Activity.java:6268)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2413)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2520)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1363)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5466)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:726)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:616)
Suppressed: java.lang.ClassNotFoundException: android.support.v7.widget.GridLayoutManager
at java.lang.Class.classForName(Native Method)
at java.lang.BootClassLoader.findClass(ClassLoader.java:781)
at java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
at java.lang.ClassLoader.loadClass(ClassLoader.java:504)
... 30 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available