Idea startup ADT simulator error Solution

The preliminary guess is that the port is occupied, because it is no problem for me to start the simulator separately. Because the default dab port is 5037, check whether the port is occupied:

The port is occupied, and then kill it with the command.

Taskkill, PID 4880, and F

4880 is the process ID and can be started normally. You can actually forward the port to another port:

ADB forward TCP: 5537 TCP: 8888

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Idea startup ADT simulator error Solution