error: Build Failed: Error
at EventEmitter.k.on.n (D:\CocosCreator_2.1.2\resources\app.asar\editor-framework\lib\main\ipc.js:1:5026)
at emitThree (events.js:116:13)
at EventEmitter.emit (events.js:197:7)
at WebContents. (D:\CocosCreator_2.1.2\resources\electron.asar\browser\api\web-contents.js:247:13)
at emitTwo (events.js:106:13)
at WebContents.emit (events.js:194:7)
--------------------
at D:\CocosCreator_2.1.2\resources\app.asar\editor\page\build\build-worker.js:1:5036
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:52:16
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:696:30
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:167:37
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:1209:30
at C.pack.then.catch.t (D:\CocosCreator_2.1.2\resources\app.asar\editor\page\build\build-worker.js:1:4694)
at
at r.waterfall.r (D:\CocosCreator_2.1.2\resources\app.asar\editor\lib\builder\index.js:1:3393)
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:52:16
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:696:30
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:167:37
at D:\CocosCreator_2.1.2\resources\app.asar\node_modules\async\lib\async.js:1209:30
at Gulp.doneCallback (D:\CocosCreator_2.1.2\resources\app.asar\editor\core\gulp-build.js:1:29766)
at Gulp.Orchestrator.stop (D:\CocosCreator_2.1.2\resources\app.asar\node_modules\orchestrator\index.js:150:9)
at C (D:\CocosCreator_2.1.2\resources\app.asar\editor\core\gulp-build.js:1:6396)
at D:\CocosCreator_2.1.2\resources\app.asar\editor\core\gulp-build.js:1:9736
2019-08-03T13:41:12.694Z - normal: Finish build-assets in worker
请问是什么问题？