在模拟器上安装时一直停在instaling apk

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