Emscripten/python error, can't compile very simple project.

Hello! I'm using Unity 5.0.0p3 64bit on Windows 8.1, I have a simple scene with a cube, light and camera. This is the error when compiling. It actually repeats itself several times with slight variations in the local/temp/.tmp file name.

Then it says Exception: IL2CPP compile failed.

Followed by: Error building Player: Exception: IL2CPP compile failed.

 

Same here

 

I was getting same error, then run Unity with Admin permission and it work fine.

 

I'm having the same problem . running as admin or installing emscripten or cmake didn't fix it. any other sugestions?

 

There are two errors in the editor console
the first one is this

Failed running "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten_Win/python/2.7.5.3_64bit/python.exe" "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten/emcc" @"D:/Plannerce/Assets/../Temp/emcc_arguments.resp"

stdout:
stderr:
warning: unresolved symbol: glCompressedTexSubImage3D
warning: unresolved symbol: glProgramParameteri
warning: unresolved symbol: glGetInternalformativ
warning: unresolved symbol: glFlushMappedBufferRange
warning: unresolved symbol: _ZN4FMOD13DSPConnection6setMixEf
warning: unresolved symbol: glUnmapBuffer
warning: unresolved symbol: glGetStringi
warning: unresolved symbol: glProgramBinary
warning: unresolved symbol: glMapBufferRange
warning: unresolved symbol: pthread_create
warning: unresolved symbol: glGetProgramBinary
warning: unresolved symbol: glCopyBufferSubData
Traceback (most recent call last):
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten/emcc", line 1365, in <module>
open(final + '.mem.js', 'w').write(src)
IOError: [Errno 0] Error

UnityEditor.HostView:OnGUI()

and the second one is this

Exception: Failed building WebGL Player.
UnityEditor.WebGL.ProgramUtils.StartProgramChecked (UnityEditor.Utils.Program p) (at /Users/builduser/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/ProgramUtils.cs:32)
UnityEditor.WebGL.WebGlBuildPostprocessor.PostProcess (BuildPostProcessArgs args) (at /Users/builduser/buildslave/unity/build/PlatformDependent/WebGL/Extensions/Unity.WebGL.extensions/BuildPostprocessor.cs:423)
UnityEditor.PostprocessBuildPlayer.Postprocess (BuildTarget target, System.String installPath, System.String companyName, System.String productName, Int32 width, Int32 height, System.String downloadWebplayerUrl, System.String manualDownloadWebplayerUrl, BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.BuildReporting.BuildReport report) (at C:/buildslave/unity/build/Editor/Mono/BuildPipeline/PostprocessBuildPlayer.cs:176)
UnityEditor.HostView:OnGUI()

 

The same thing happened last week and I fixed it by migrating to a new project but that took almost a day and I don't want to waste a day every week for the same problem

 

I am able to make development builds with no error only when use pre-build engine is on. otherwise I get another error along with the second error that I posted before
the error is this

Failed running "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten_Win/python/2.7.5.3_64bit/python.exe" "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten/emcc" @"D:/Plannerce/Assets/../Temp/emcc_arguments.resp"

stdout:
stderr:
warning: unexpected number of arguments 4 in call to '_ZN6il2cpp6icalls8mscorlib6System6String22RedirectToCreateStringEv', should be 0
warning: unexpected number of arguments 4 in call to '_ZN6il2cpp6icalls8mscorlib6System6String22RedirectToCreateStringEv', should be 0
warning: unexpected number of arguments 2 in call to '_ZN6il2cpp6icalls8mscorlib6System6String22RedirectToCreateStringEv', should be 0
warning: unexpected number of arguments 3 in call to '_ZN6il2cpp6icalls8mscorlib6System6String22RedirectToCreateStringEv', should be 0
warning: unresolved symbol: glCompressedTexSubImage3D
warning: unresolved symbol: glProgramParameteri
warning: unresolved symbol: glGetInternalformativ
warning: unresolved symbol: _ZN4FMOD13DSPConnection6setMixEf
warning: unresolved symbol: glUnmapBuffer
warning: unresolved symbol: glGetStringi
warning: unresolved symbol: glProgramBinary
warning: unresolved symbol: glMapBufferRange
warning: unresolved symbol: pthread_create
warning: unresolved symbol: glGetProgramBinary
warning: unresolved symbol: glFlushMappedBufferRange
warning: unresolved symbol: glCopyBufferSubData
WARNING root: function requested to be exported, but not implemented: "_SendMessageInt"
Traceback (most recent call last):
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten.py", line 1064, in <module>
_main(environ=os.environ)
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten.py", line 1054, in _main
temp_files.run_and_clean(lambda: main(
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\tools\tempfiles.py", line 39, in run_and_clean
return func()
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten.py", line 1060, in <lambda>
DEBUG_CACHE=DEBUG_CACHE,
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten.py", line 961, in main
temp_files=temp_files, DEBUG=DEBUG, DEBUG_CACHE=DEBUG_CACHE)
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\emscripten.py", line 921, in emscript
outfile.write(funcs_js)
IOError: [Errno 0] Error
Traceback (most recent call last):
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport/BuildTools/Emscripten/emcc", line 1294, in <module>
final = shared.Building.emscripten(final, append_ext=False, extra_args=extra_args)
File "C:\Program Files\Unity\Editor\Data\PlaybackEngines\WebGLSupport\BuildTools\Emscripten\tools\shared.py", line 1535, in emscripten
assert os.path.exists(filename + '.o.js'), 'Emscripten failed to generate .js'
AssertionError: Emscripten failed to generate .js

UnityEditor.HostView:OnGUI()

 

I have 5GB on C and 300MB on D where I save the build is that enough?

 

Nope, The same results with the Development build and the release build.
The project is also on D could that be the problem?

 

Yeap! that fixed it,I freed some space in D: and it worked. thank you soooooo much
how could you figure out were the problem was?