我是离子的新手，我已经按照以下步骤设置了从ionicframework网站开发离子应用程序的环境，但我仍然坚持使用ionic build android命令因为我得到了这个错误
[Error: Please install Android target: "android-17". Hint: Open the SDK manager by running: C:\Program\ Files\Android\android-sdk\tools\android.BAT
You will require:
1. "SDK Platform" for android-17
2. "Android SDK Platform-tools (latest)
3. "Android SDK Build-tools" (latest)]
ERROR building one of the platforms: Error: cmd: Command failed with exit code 2
You may not have the required environment or OS to build this project
Error: cmd: Command failed with exit code 2
并且安装了所有这些构建工具和平台工具。请问可能是问题。在win cmd上的android命令工作正常，因为它打开了sdk管理器
