[error record] the connection of the flutter device shows loading (disconnect | delete the shuttle/bin/cache/lockfile file)

One 、 Error message

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The phone has turned on developer mode , USB Commissioning one open , But in Androud Studio The device in always shows " Loading " , Unable to connect to the real machine for debugging ;

At this time, execute in the name cube line " flutter doctor " , Will prompt " Waiting for another flutter command to release the startup lock… " ;

Two 、 Solution

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Broken net , Broken net , Broken net ;

Disconnect the network first , Then do the following ;

Delete Flutter Install under directory bin/cache In the catalog lockfile file ;

When you delete it, you will be prompted " The operation cannot be completed , Because the file is already in dart.exe Open in " , Find... In task manager " dart.exe " process , After closing , And then delete flutter/bin/cache/lockfile file ;