关于unity3d发布WebGL出错需要注意的问题

一直用unity3d在做ios、安卓和windows这些平台的开发，最近有需求要发布到网页上，才发现这有一个大坑

打包WebGL平台老是出错，错误输出：

Failed running "D:\Program Files\unity5.4.1\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten_Win/python/2.7.5.3_64bit/python.exe" "D:\Program Files\unity5.4.1\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten/emcc" @"D:/Myprogram/test/Foxiang/Assets/../Temp/emcc_arguments.resp"

stdout:
stderr:
Traceback (most recent call last):
  File "D:\Program Files\unity5.4.1\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten/emcc", line 1197, in <module>
    shared.Building.link(linker_inputs, in_temp(target_basename + '.bc'), force_archive_contents=force_archive_contents)
  File "D:\Program Files\unity5.4.1\Editor\Data\PlaybackEngines\WebGLSupport\Bu