Matlab can not find Visual Studio C++ compiler

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Iqra Karim
Iqra Karim 2023-6-19
评论： Iqra Karim 2023-6-20
I have the 2019a version of MATLAB. I also have Visual Studio Community 2019 installed with MSVC v 141. However, when I try to change my compiler form MinGW to Visual Studio C++, mex can not find the said compiler. What could be the issue?
>> mex -setup cpp -v
Verbose mode is on.
... Looking for compiler 'Intel Parallel Studio XE 2015 for C++ with Microsoft Visual Studio 2015' ...
... Looking for environment variable 'ICPP_COMPILER15' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2015 for C++ with Microsoft Visual Studio 2015'.
... Looking for compiler 'Intel Parallel Studio XE 2016 for C++ with Microsoft Visual Studio 2015' ...
... Looking for environment variable 'ICPP_COMPILER16' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2016 for C++ with Microsoft Visual Studio 2015'.
... Looking for compiler 'Intel Parallel Studio XE 2017 for C++ with Microsoft Visual Studio 2015' ...
... Looking for environment variable 'ICPP_COMPILER17' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2017 for C++ with Microsoft Visual Studio 2015'.
... Looking for compiler 'Intel Parallel Studio XE 2017 for C++ with Microsoft Visual Studio 2017' ...
... Looking for environment variable 'ICPP_COMPILER17' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2017 for C++ with Microsoft Visual Studio 2017'.
... Looking for compiler 'Intel Parallel Studio XE 2018 for C++ with Microsoft Visual Studio 2015' ...
... Looking for environment variable 'ICPP_COMPILER18' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2018 for C++ with Microsoft Visual Studio 2015'.
... Looking for compiler 'Intel Parallel Studio XE 2018 for C++ with Microsoft Visual Studio 2017' ...
... Looking for environment variable 'ICPP_COMPILER18' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2018 for C++ with Microsoft Visual Studio 2017'.
... Looking for compiler 'Intel Parallel Studio XE 2019 for C++ with Microsoft Visual Studio 2015' ...
... Looking for environment variable 'ICPP_COMPILER19' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2019 for C++ with Microsoft Visual Studio 2015'.
... Looking for compiler 'Intel Parallel Studio XE 2019 for C++ with Microsoft Visual Studio 2017' ...
... Looking for environment variable 'ICPP_COMPILER19' ...No.
Did not find installed compiler 'Intel Parallel Studio XE 2019 for C++ with Microsoft Visual Studio 2017'.
... Looking for compiler 'MinGW64 Compiler (C++)' ...
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Looking for file 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++.exe' ...Yes.
... Looking for folder 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset' ...Yes.
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Executing command 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++ -dumpmachine' ...Yes ('x86_64-w64-mingw32').
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Executing command 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++ -dumpversion' ...Yes ('6.3.0').
Found installed compiler 'MinGW64 Compiler (C++)'.
... Looking for compiler 'MinGW64 Compiler with Windows 10 SDK or later (C++)' ...
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Looking for file 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++.exe' ...Yes.
... Looking for folder 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset' ...Yes.
... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\Windows\v10.0' InstallationFolder ...Yes ('C:\Program Files (x86)\Windows Kits\10\').
... Looking for folder 'D:\MATLAB' ...Yes.
... Executing command '"D:\MATLAB\bin\mbuild.bat" -getWin10SDKVersion' ...No.
Did not find installed compiler 'MinGW64 Compiler with Windows 10 SDK or later (C++)'.
... Looking for compiler 'Microsoft Visual C++ 2015' ...
... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VC7' 14.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VC7' 14.0 ...No.
... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VC7' 14.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VC7' 14.0 ...No.
Did not find installed compiler 'Microsoft Visual C++ 2015'.
... Looking for compiler 'Microsoft Visual C++ 2017' ...
... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 15.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 15.0 ...No.
... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 15.0 ...No.
... Looking for registry setting 'HKCU\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 15.0 ...No.
Did not find installed compiler 'Microsoft Visual C++ 2017'.
... Looking for compiler 'MinGW64 Compiler (C++)' ...
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Looking for file 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++.exe' ...Yes.
... Looking for folder 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset' ...Yes.
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Executing command 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++ -dumpmachine' ...Yes ('x86_64-w64-mingw32').
... Looking for environment variable 'MW_MINGW64_LOC' ...Yes ('C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset').
... Executing command 'C:\ProgramData\MATLAB\SupportPackages\R2019a_1\3P.instrset\mingw_w64.instrset\bin\g++ -dumpversion' ...Yes ('6.3.0').
Found installed compiler 'MinGW64 Compiler (C++)'.
MEX configured to use 'MinGW64 Compiler (C++)' for C++ language compilation.
Warning: The MATLAB C and Fortran API has changed to support MATLAB
variables with more than 2^32-1 elements. You will be required
to update your code to utilize the new API.
You can find more information about this at:
https://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.

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回答（1 个）

Ishit
Ishit 2023-6-19
  2 个评论
Iqra Karim
Iqra Karim 2023-6-20
Thank you for your response! I have matlab installed in the diectory mentioned in:
MATLAB 2018b cannot find Microsoft Visual C++ 2017 compiler when I run mex -setup - MATLAB Answers - MATLAB Central (mathworks.com)
but I am still getting this error.
I followed the mex setup instructions for c compiler as well but that didn't do it either.
Is there anything else I can try?
Iqra Karim
Iqra Karim 2023-6-20
Also, could it be because I don't have matlab installed on the default C drive where visual studio is installed?

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