Flutter学习_遇到的错误汇集（持续更新中）

1、操作：运行 flutter doctor 后
报错:（Some Android licenses not accepted. To resolve this, run: flutter doctor --android-licenses）
解决办法：运行flutter doctor --android-licenses，一直输入 y 就可以

2、操作：flutter create my_app_test
报错：Cannot create a project within the Flutter SDK. Target directory
'/Users/sinda_liu/flutter/my_app_test' is within the Flutter SDK at
'/Users/sinda_liu/flutter’.
解决办法：不要将工程项目目录建在flutter SDK目录里面

3、操作：flutter run
报错:More than one device connected; please specify a device with the '-d <deviceId>'
flag, or use '-d all' to act on all devices.
Sinda • 285bb649b1229c35bb72cef10b2cc • ios • iOS 13.1.2
iPhone 11 Pro Max • 1E2110CA-5C63-4363-B353-B0DA1BD2 • ios •
com.apple.CoreSimulator.SimRuntime.iOS-13-0 (simulator)
解决办法：flutter run -d 1E2110CA-5C63-4363-B353-B0DA1BD2（选择运行目标对应的ID）

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4、操作：加载本地的一张图片，icon: Image.asset('assets/home_scan')
报错： flutter: Unable to load asset: assets/home_scan
Image provider: AssetImage(bundle: null, name: "assets/home_scan")
flutter: Image key: AssetBundleImageKey(bundle: PlatformAssetBundle#244b8(), name: "assets/home_scan", scale:
flutter: 1.0)
解决办法：重点检查图片是否在pubspec.yaml里面添加路径，我这个是习惯了oc开发方式，忽略了后缀名。在assets/home_scan后加后缀名.png,改成assets/home_scan.png,再运行就可以了。