Okay I was intrigued and added Boost debug info in the CMake file of the project that is generating the initial error.<div>I had this:</div><div><br></div><div><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
find_package( Boost COMPONENTS </p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>system </p>
<p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>date_time </p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
<span style="white-space:pre-wrap"> </span>filesystem </p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>chrono</p>
<p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>thread</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
<span style="white-space:pre-wrap"> </span>program_options</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>log</p>
<p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>log_setup</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
)</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><br></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
if( NOT Boost_FOUND )</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><span style="white-space:pre-wrap"> </span>message( "Boost was NOT found!" )</p>
<p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">endif()</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
<br></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><br></p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px">
And I added this line before the find_package:</p><p style="color:rgb(34,34,34);font-family:arial,sans-serif;font-size:12.727272033691406px;background-color:rgb(255,255,255);margin:0px"><br></p><p style="background-color:rgb(255,255,255);margin:0px">
</p><p style="margin:0px"><font color="#222222" face="arial, sans-serif">set( Boost_USE_STATIC_LIBS ON )</font></p><p style="margin:0px"><font color="#222222" face="arial, sans-serif">set( Boost_USE_MULTITHREADED ON )</font></p>
<p style="margin:0px"><font color="#222222" face="arial, sans-serif">set( Boost_USE_STATIC_RUNTIME OFF )</font></p><p style="margin:0px"><font color="#222222" face="arial, sans-serif">set( Boost_DEBUG ON ) </font></p>
<p></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif"><br></font></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif"><br>
</font></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif">Now it don't generate an error.</font></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif"><br>
</font></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif">In doubt, I deleted the cache and reconfigured, with the same result</font></p><p style="background-color:rgb(255,255,255);margin:0px">
<font color="#222222" face="arial, sans-serif">I tried each line separately and go to the conclusion that this line :</font></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif"><br>
</font></p><p style="background-color:rgb(255,255,255);margin:0px"></p><p style="margin:0px"></p><p style="margin:0px"><font color="#222222" face="arial, sans-serif">set( Boost_USE_STATIC_LIBS ON ) </font></p>
<p></p>Solve the problem.<p></p><p style="background-color:rgb(255,255,255);margin:0px"><br></p><p style="background-color:rgb(255,255,255);margin:0px">Indeed I didn't generated dll versions of Boost and don't want to use them at the moment.</p>
<p style="background-color:rgb(255,255,255);margin:0px">So I'm not sure if it is a bug or the update fixed a previous bug that didn't point to the fact that dlls were missing?</p><p style="background-color:rgb(255,255,255);margin:0px">
The initial error message is obscure to me.</p><p style="background-color:rgb(255,255,255);margin:0px"><br></p><p style="background-color:rgb(255,255,255);margin:0px"><br></p><p style="background-color:rgb(255,255,255);margin:0px">
Joel Lamotte</p><p style="background-color:rgb(255,255,255);margin:0px"><br></p><p style="background-color:rgb(255,255,255);margin:0px"><font color="#222222" face="arial, sans-serif"><br></font></p><p style="background-color:rgb(255,255,255);margin:0px">
<font color="#222222" face="arial, sans-serif"><br></font></p></div>