我正在使用 CastButton 进行电影项目，我完成了一个示例，并且效果很好。但是当我在做真正的项目时，我遇到了问题。我将编译导入到我的大文件中，但是当我创建 MediaRouteButton 时出现错误，我尝试了很多方法但无法修复它，所以我现在真的需要帮助：这是：编译文件：
compile 'com.android.support:appcompat-v7:25.0.0'
compile 'com.android.support:mediarouter-v7:25.0.0'
compile 'com.googlecode.android-query:android-query:0.25.9'
compile 'com.google.android.gms:play-services-cast-framework:10.2.0'
这是日志猫：
Caused by: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/app/MediaRouteButton;
at com.jlabs.pluginplayer.view.MediaPlayerView.addMediaButton(MediaPlayerView.java:533)
at com.jlabs.pluginplayer.view.MediaPlayerView.access$4200(MediaPlayerView.java:53)
at com.jlabs.pluginplayer.view.MediaPlayerView$3.run(MediaPlayerView.java:514)
at android.app.Activity.runOnUiThread(Activity.java:5524)
at com.jlabs.pluginplayer.view.MediaPlayerView.preload(MediaPlayerView.java:490)
at com.jlabs.pluginplayer.PlayerActivity.onResume(PlayerActivity.java:330)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1258)
at android.app.Activity.performResume(Activity.java:6327)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3092)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3134)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
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.app.MediaRouteButton" on path: DexPathList[[zip file "/data/app/jp.tsutayamovie-1/base.apk"],nativeLibraryDirectories=[/data/app/jp.tsutayamovie-1/lib/arm, /data/app/jp.tsutayamovie-1/base.apk!/lib/armeabi-v7a, /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 com.jlabs.pluginplayer.view.MediaPlayerView.addMediaButton(MediaPlayerView.java:533)
at com.jlabs.pluginplayer.view.MediaPlayerView.access$4200(MediaPlayerView.java:53)
at com.jlabs.pluginplayer.view.MediaPlayerView$3.run(MediaPlayerView.java:514)
at android.app.Activity.runOnUiThread(Activity.java:5524)
at com.jlabs.pluginplayer.view.MediaPlayerView.preload(MediaPlayerView.java:490)
at com.jlabs.pluginplayer.PlayerActivity.onResume(PlayerActivity.java:330)
at android.app.Instrumentation.callActivityOnResume(Instrumentation.java:1258)
at android.app.Activity.performResume(Activity.java:6327)
at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3092)
at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3134)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2481)
at android.app.ActivityThread.-wrap11(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1344)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:148)
at android.app.ActivityThread.main(ActivityThread.java:5417)
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.app.MediaRouteButton
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)
... 20 more
Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack trace available
我该如何解决？