I updated to version 2020.1 and got the following error recompiling my dll
Error MSB3073 The command "mkl_link_tool.exe -libs -c ms_c -a intel64 -l static 2> NUL" exited with code 9009. LNM_Lapack C:\Program Files (x86)\Microsoft Visual Studio\2019\Community\MSBuild\Microsoft\VC\v160\Platforms\x64\PlatformToolsets\v142\ImportBefore\Intel.Libs.MKL.v142.targets 64
line 64 in the Intel.Libs.MKL.v142.targets file corresponds to
<Exec ConsoleToMSBuild="true" EchoOff="true" StandardOutputImportance="low" Command="mkl_link_tool.exe $(MKLArguments) 2> NUL" WorkingDirectory="$(MKLProductDir)\mkl\tools"> <Output TaskParameter="ConsoleOutput" ItemName="_MKLLibraries" /> </Exec>
So VS is trying to start mkl_link_tool in the directory "$(MKLProductDir)\mkl\tools". The problem is that there is no such file in the directory. mkl_link_tool is located in the bin\ directory. Making a copy of the executable in the tool\ solves the problem.