java - IActivityManager cannot be resolved android studio -


i try make project "send , receive sms" when open class broadcastrecieve errors :

cannot resolve symbol 

import android.app.activitymanagernative; import android.app.activitythread; import android.app.iactivitymanager; import android.app.queuedwork; import android.util.slog;

errors

i try : "invaldate cache/restart" , compile 'com.android.support:support-annotations:+'

but still didn't work

how can resolve problem !


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