关于纯flutter 工程 error: Build input file cannot be found: '/Users/xxx/Documents/.pub-cache/hosted/pub.flutter-io.cn/webview_flutter-0.3.21/ios/Classes/JavaScriptChannelHandler.m'

提示找不到webview_flutter，我本地pub-cache目录根本没在/Users/xxx/Documents/下，然后看了下 .flutter-plugins文件里根本没有这个插件的信息。删了重新build下