小编Aus*_*eve的帖子

我的地图：

{Info: {name: Austin, Username: austinr}}

我正在使用这一行将 myName 变量设置为“Austin”

String myName = map["name"] as String;

但是..这一行似乎将字符串“myName”设置为空。只是在寻找一种从地图中提取我的姓名和用户名的方法

谢谢

我已经使用颤振有一段时间了。有一次当我去编译时，我刚收到这个错误。我的代码似乎没有任何问题。我试图重新安装我的 cocoapods，但这并没有改变任何东西。谁有想法？

  Launching lib/main.dart on iPhone X in debug mode...
Skipping compilation. Fingerprint match.
Running pod install...
CocoaPods' output:
?
  Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-Runner`: (`arm64`)

Finding Podfile changes
  A helloworld
  - Flutter
  - camera

Fetching external sources
-> Fetching podspec for `Flutter` from `Pods/.symlinks/flutter/ios`
-> Fetching podspec for `camera` from `Pods/.symlinks/plugins/camera-0.1.2/ios`
-> Fetching podspec for `helloworld ` from `Pods/.symlinks/plugins/helloworld/ios`
[!] No podspec found for `helloworld ` in `Pods/.symlinks/plugins/helloworld/ios` …