Waiting for another pilot command to release the startup lock

During normal development, Android Studio connected to the emulator and did not show it
If Waiting for another flutter Command to release the startup lock..    
Two solutions;

    switch network (the first one is not ok, the second one is not ok) into the SDK directory of flutter, then find bin/cache/lockfile file, delete it, then run the doctor of flutter, and then connect to the simulator.

The mistake will be solved


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