运行 dart tool/build.dart 报错，找不到BuildAction #4
Description
weibodeiMac:nodebb weibo$ dart tool/build.dart
Unhandled exception:
‘file:///Users/weibo/data/source/flutter/nodebb/tool/build.dart’: malformed type: line 14 pos 9: cannot resolve class ‘BuildAction’ from '::'
new BuildAction(
^
#0 _TypeError._throwNew (dart:core-patch/dart:core/errors_patch.dart:84)
#1 main (file:///Users/weibo/data/source/flutter/nodebb/tool/build.dart:14:9)
#2 _startIsolate. (dart:isolate-patch/dart:isolate/isolate_patch.dart:277)
#3 _RawReceivePortImpl._handleMessage (dart:isolate-patch/dart:isolate/isolate_patch.dart:165)
我运行 dart tool/build.dart 报错，找不到BuildAction