Installation did not succeed.
The application could not be installed: INSTALL_PARSE_FAILED_MANIFEST_MALFORMED
Installation failed due to: 'null'
手机打开了开发者选项
还有调试模式
在AndroidManifest.xml中增加android:exported试试
<activity android:name=".MainActivity"
android:exported="true">
其实把报错信息搜百度会更快，问答很慢的，大部分问题一搜就有了https://blog.csdn.net/weixin_42182599/article/details/123203352