After issuing a |./mach build| command at the root m-c folder, and after the build succeeds, I get a mach error message. Here are the last few output lines: ------------------------------ 8:50.56 EXE header size: 64000 / 39424 bytes 8:50.56 Install code: 37330 / 37326 bytes 8:50.56 Install data: 17416 / 51228 bytes 8:50.56 Uninstall code+data: 67252 / 67244 bytes 8:50.56 CRC (0x2B908F32): 4 / 4 bytes 8:50.56 8:50.56 Total size: 186002 / 195226 bytes (95.2%) 8:51.00 tools_tier_app 8:57.02 1997 compiler warnings present. Your build was successful! Error running mach: ['build'] The error occurred in code that was called by the mach command. This is either a bug in the called code itself or in the way that mach is calling it. You should consider filing a bug for this issue. If filing a bug, please include the full output of mach, including this error message. The details of the failure are as follows: Exception: Binary expected at obj-i686-pc-mingw32\dist\firefox.exe does not exist. File "e:\dev\moz\src\central\python/mozbuild/mozbuild/mach_commands.py", line 131, in build app_path = self.get_binary_path('app') File "e:\dev\moz\src\central\python/mozbuild\mozbuild\base.py", line 157, in get_binary_path raise Exception('Binary expected at %s does not exist.' % path) ------------------------------ It seems that it doesn't use the 'bin' folder right after 'dist' in |Exception: Binary expected at obj-i686-pc-mingw32\dist\firefox.exe does not exist.|

Is this different to bug 854057 or just a duplicate of that?

(In reply to Robert Longson from comment #1) > Is this different to bug 854057 or just a duplicate of that? Duplicate indeed. Thanks.