<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div dir="ltr"><div dir="ltr">I am completely unable to build Boost libraries. I have been building on this same computer for many years, so this issue is confounding to me. I'm posting here in the hope that this peculiar error message might ring a bell with someone.</div><div dir="ltr"><br></div><div dir="ltr">After bootstrapping, when executing "b2.exe", before getting into the actual build (which fails), these error messages are repeated multiple times:<br><div><br></div><div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font face="monospace, monospace">error: No best alternative for ./headers<br> next alternative: required properties: (empty)<br> matched<br> next alternative: required properties: (empty)<br> matched</font></blockquote></div><div><br></div><div>I have attached console output from the offending build.</div><div><br></div><div>My actual command line is:</div><div><br></div></div></div><div dir="ltr"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><font face="monospace, monospace">.\b2 -j8 toolset=msvc-14.1 --build-type=minimal --without-mpi --without-python address-model=32 link=shared threading=multi runtime-link=shared windows-api=desktop stage</font></blockquote></div><blockquote style="margin:0 0 0 40px;border:none;padding:0px"><div dir="ltr"><div dir="ltr"><div><br></div></div></div></blockquote><font face="arial, helvetica, sans-serif">Thanks in advance!</font></div> </div></div>