Installation failed due to: 'null'

Installation did not succeed.
The application could not be installed: INSTALL_FAILED_CONFLICTING_PROVIDER

List of apks:
[0] '/Users/hayden/Desktop/wanhuobang/app/build/outputs/apk/debug/xxx-v1.0.0.apk'
Installation failed due to: 'null'

原因：模拟器（手机）存在.apk与所安装软件冲突，解决方案是：将模拟器（手机）里的对应软件删掉即可