id summary reporter owner description type status milestone component version severity resolution keywords cc 13279 1.65.1 Not build vc141 salih.yucel@… Vladimir Prus "Hi I'm using vs2017 I have C++ cross platform project. I want use to boost lib but I'm nat build boost Down Error code I need a help [vcvarsall.bat] Environment initialized for: 'x86' Using 'vc141' toolset. C:\Users\salih.yucel\Source>if exist bootstrap rd /S /Q bootstrap C:\Users\salih.yucel\Source>md bootstrap C:\Users\salih.yucel\Source>cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib /Febootstrap\yyacc0 yyacc.c yyacc.c c1: fatal error C1083: Cannot open source file: 'yyacc.c': No such file or directory" Support Requests closed Boost 1.66.0 build Boost 1.65.0 Problem duplicate