关于R$styleable的问题

ironme

启动类只是继承了下 AppcompatActivity
没有任何代码

log：
错误: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v7/appcompat/R$styleable;
错误: 位于 android.app.ActivityThread.access$900(ActivityThread.java:154)
错误: Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.appcompat.R$styleable" on path: DexPathList[[zip file "/data/app/hsh.yh.mr-2/base.apk"],nativeLibraryDirectories=[/vendor/lib, /system/lib]]
错误: ... 16 more
错误: Suppressed: java.lang.ClassNotFoundException: android.support.v7.appcompat.R$styleable
错误: 位于 java.lang.BootClassLoader.findClass(ClassLoader.java:781)
错误: 位于 java.lang.BootClassLoader.loadClass(ClassLoader.java:841)
错误: ... 17 more
错误: Caused by: java.lang.NoClassDefFoundError: Class not found using the boot class loader; no stack available


求大佬讲解