问题：
Installation failed with message null.
It is possible that this issue is resolved by uninstalling an existing version of the apk if it is present, and then re-installing WARNING:Uninstalling will remove the application data！
Do you want to uninstall the existing application
原因：未知，有小伙伴知道的希望在评论区留言交流一下
解决：
改换成真机安装成功