firstOne

请问下这是什么原因启动不成功

2

e: D:\flutter\.pub-cache\hosted\pub.flutter-io.cn\flutter_app_upgrade-1.1.0\android\src\main\kotlin\com\flutter\flutter_app_upgrade\FlutterAppUpgradePlugin.kt: (62, 54): Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type File? e: D:\flutter\.pub-cache\hosted\pub.flutter-io.cn\flutter_app_upgrade-1.1.0\android\src\main\kotlin\com\flutter\flutter_app_upgrade\FlutterAppUpgradePlugin.kt: (127, 20): None of the following functions...