Closed Bug 887525 Opened 7 years ago Closed Last year
Error in mach build under Windows8 (desktop)
User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:22.0) Gecko/20100101 Firefox/22.0 (Beta/Release) Build ID: 20130618035212 Steps to reproduce: 1) Fresh installed Windows 8 Enterprise (licensed), VS2012 Pro 2) did all as described here: https://developer.mozilla.org/en-US/docs/Developer_Guide/Build_Instructions/Windows_Prerequisites#MozillaBuild_.2F_Pymake 3) hg clone https://hg.mozilla.org/mozilla-central 4) vim .mozconfig ac_add_options --enable-debug # Enable parallel compiling CONCURRENCY=$(( `grep processor /proc/cpuinfo | wc -l` + 2 )) mk_add_options MOZ_MAKE_FLAGS="-j$CONCURRENCY" 5) ./mach build Actual results: /c/mozilla-source/mozilla-central $ ./mach build Error running mach: ['build'] The error occurred in mach itself. This is likely a bug in mach itself or a fundamental problem with a loaded module. Please consider filing a bug against mach by going to the URL: https://bugzilla.mozilla.org/enter_bug.cgi?product=Core&component=mach If filing a bug, please include the full output of mach, including this error message. The details of the failure are as follows: AssertionError File "c:\mozilla-source\mozilla-central\python/mach\mach\main.py", line 231, in run return self._run(argv) File "c:\mozilla-source\mozilla-central\python/mach\mach\main.py", line 310, in _run instance = cls(context) File "c:\mozilla-source\mozilla-central\python/mozbuild\mozbuild\base.py", line 454, in __init__ self.mozconfig File "c:\mozilla-source\mozilla-central\python/mozbuild\mozbuild\base.py", line 190, in mozconfig self._mozconfig = loader.read_mozconfig() File "c:\mozilla-source\mozilla-central\python/mozbuild\mozbuild\mozconfig.py", line 198, in read_mozconfig parsed = self._parse_loader_output(output) File "c:\mozilla-source\mozilla-central\python/mozbuild\mozbuild\mozconfig.py", line 306, in _parse_loader_output assert current_type is not None Expected results: Normal mach build.
Sorry, there was my fault: # Enable parallel compiling CONCURRENCY=$(( `grep processor /proc/cpuinfo | wc -l` + 2 )) mk_add_options MOZ_MAKE_FLAGS="-j$CONCURRENCY" in .mozconfig under Windows was stupid. Unfortunately I can't find no Windows example for ./mozconfig on the corresponding MDN page.
This is an old bug but hopefully I can help some people with this comment. I had been getting the same error and I could not figure out why.. Until I read the build instructions more closely. Here are the steps I took to build a copy of Firefox: 1) download the Firefox sources to C:\Development\Firefox 2) create a blank mozconfig file at C:\Development\Firefox\mozconfig (without the . prefix) 3) download and install the MozillaBuild package to C:\mozilla-build 4) navigate to C:\mozilla-build 5) launch the shell for the version of Visual Studio I have installed (start-shell-msvc2012.bat) 6) change directory to C:\Development\Firefox\ 7) execute the command ./mach build At this stage, the build should commence and then you will just have to wait a while. I am not sure if step 2 necessary. Make sure your MozillaBuild package is up-to-date if it is still not working. https://wiki.mozilla.org/MozillaBuild The most important thing is: use the shell installed with MozillaBuild - NOT the command prompt or your own installation of Cygwin.
Status: UNCONFIRMED → RESOLVED
Closed: Last year
Resolution: --- → FIXED
Component: Build Config → General
Product: Firefox → Firefox Build System
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