Error:Could not find method compile()
for arguments [com.android.support:design:23.4.0] on DefaultExternalModuleDependency{group=‘com.android.support‘, name=‘appcompat-v7‘, version=‘23.4.0‘, configuration=‘default‘
} of type org.gradle.api.internal.artifacts.dependencies.DefaultExternalModuleDependency.
Please install the Android Support Repository from the Android SDK Manager.
解决办法：
改成：
