Configuring the React native encountered problems

Toss for two days finally solved the problem, a start with the simulator is reported as the wrong

And then it's the wrong time to use the real machine.

This error online there are many solutions, said is to downgrade processing, the Build.gradle in the 1.3.1 changed to 1.2.3, but after the problem is still not resolved, my phone is the charm of blue Note2, and in the online search, some people say that it is the phone connection problem. It is possible to try other phones as well.

Then the first question, the beginning thought is the port duplication what, various check command, later on the net search, is oneself did not configure well, in Genymotion's setting chooses the ADB, then needs to set up for oneself installs the SDK to be in the location, as

And then it's finally configured, and the following screen appears.

In addition about the charm of the blue Note2 problem has not been resolved, temporarily can not find any problems, if you know, please advise!

Configuring the React native encountered problems