Fatal error LNK1104: cannot open file 'libboost_log-vc141-mt-gd-1_64.lib'

6
votes

I'm writing a program which utilizes Boost logging features and consequently, when attempting to build the said program, I'm getting the following error when generating code (on Visual Studio 2017):

1>LINK : fatal error LNK1104: cannot open file 'libboost_log-vc141-mt-gd-1_64.lib'

However, I can confirm the following:

  • boost_1_64_0\stage\lib has been added to "Additional Library Directories" under Linker -> General
  • libboost_log-vc141-mt-gd-1_64.lib is located under stage/lib since when unpacking Boost, I did a complete build with toolset set to 14.1
  • following relevant question's answers, I did add the specific .lib to "Additional Dependencies" under Linker -> Input

I feel like it's something obvious that I am missing. But, any help would be much appreciated.

2
c++visual-studioboostvisual-studio-2017lib
Are you mixing 32 and 64 bit? – drescherjm
Set the Tools->Options, Projects and Solutions->Build and Run, MSBuild project build log verbosity to Diagnostic. Build your project. Examine the log in your intermediate output folder and search for the boost library name and the link command line it uses. – Khouri Giordano

2 Answers

4
votes

drescherjm was correct, I was mixing 32 and 64 bit. Needed to change Target Machine under Project Configuration Properties -> Linker -> Advanced to MACHINEX86 and it worked.

Thank you!

0
votes

For me, I was using the below define for linking log libraries in order to use dynamically. I removed it and worked.

//#define BOOST_LOG_DYN_LINK 1 // necessary when linking the boost_log library dynamically