What does 'Mex file (mexw64) cannot find required compilers' mean?

Using Matlab 2016b, Windows 10 system. Upon running mex -setup -v, the output is:

Verbose mode is on. ... Looking for compiler 'Intel C++ Composer XE 2013 with Microsoft SDK 7.1 (C)' ... ... Looking for environment variable 'ICPP_COMPILER14' ...No. ... Looking for environment variable 'ICPP_COMPILER13' ...No. Did not find installed compiler 'Intel C++ Composer XE 2013 with Microsoft SDK 7.1 (C)'. ... Looking for compiler 'Intel C++ Composer XE 2013 with Microsoft Visual Studio 2012 (C)' ... ... Looking for environment variable 'ICPP_COMPILER14' ...No. ... Looking for environment variable 'ICPP_COMPILER13' ...No. Did not find installed compiler 'Intel C++ Composer XE 2013 with Microsoft Visual Studio 2012 (C)'. ... Looking for compiler 'Intel C++ Composer XE 2013 with Microsoft Visual Studio 2013 (C)' ... ... Looking for environment variable 'ICPP_COMPILER14' ...No. ... Looking for environment variable 'ICPP_COMPILER13' ...No. Did not find installed compiler 'Intel C++ Composer XE 2013 with Microsoft Visual Studio 2013 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2015 with Microsoft SDK 7.1 (C)' ... ... Looking for environment variable 'ICPP_COMPILER15' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2015 with Microsoft SDK 7.1 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2015 with Microsoft Visual Studio 2012 (C)' ... ... Looking for environment variable 'ICPP_COMPILER15' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2015 with Microsoft Visual Studio 2012 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2015 with Microsoft Visual Studio 2013 (C)' ... ... Looking for environment variable 'ICPP_COMPILER15' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2015 with Microsoft Visual Studio 2013 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2015 with Microsoft Visual Studio 2015 (C)' ... ... Looking for environment variable 'ICPP_COMPILER15' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2015 with Microsoft Visual Studio 2015 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2016 with Microsoft SDK 7.1 (C)' ... ... Looking for environment variable 'ICPP_COMPILER16' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2016 with Microsoft SDK 7.1 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2016 with Microsoft Visual Studio 2012 (C)' ... ... Looking for environment variable 'ICPP_COMPILER16' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2016 with Microsoft Visual Studio 2012 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2016 with Microsoft Visual Studio 2013 (C)' ... ... Looking for environment variable 'ICPP_COMPILER16' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2016 with Microsoft Visual Studio 2013 (C)'. ... Looking for compiler 'Intel Parallel Studio XE 2016 with Microsoft Visual Studio 2015 (C)' ... ... Looking for environment variable 'ICPP_COMPILER16' ...No. Did not find installed compiler 'Intel Parallel Studio XE 2016 with Microsoft Visual Studio 2015 (C)'. ... Looking for compiler 'MinGW64 Compiler (C)' ... ... Looking for environment variable 'MW_MINGW64_LOC' ...Yes (''C:\TDM-GCC-64''). ... Looking for file ''C:\TDM-GCC-64'\bin\gcc.exe' ...No. Did not find installed compiler 'MinGW64 Compiler (C)'. ... Looking for compiler 'Microsoft Visual C++ 2012 (C)' ... ... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No. ... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No. ... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No. ... Looking for registry setting 'HKCU\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 11.0 ...No. Did not find installed compiler 'Microsoft Visual C++ 2012 (C)'. ... Looking for compiler 'Microsoft Visual C++ 2013 Professional (C)' ... ... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No. ... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No. ... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No. ... Looking for registry setting 'HKCU\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 12.0 ...No. Did not find installed compiler 'Microsoft Visual C++ 2013 Professional (C)'. ... Looking for compiler 'Microsoft Visual C++ 2015 Professional (C)' ... ... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 14.0 ...No. ... Looking for registry setting 'HKCU\SOFTWARE\Microsoft\VisualStudio\SxS\VS7' 14.0 ...No. ... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VS7' 14.0 ...Yes ('C:\Program Files (x86)\Microsoft Visual Studio 14.0\'). ... Looking for file 'C:\Program Files (x86)\Microsoft Visual Studio 14.0\VC\bin\amd64\cl.exe' ...No. Did not find installed compiler 'Microsoft Visual C++ 2015 Professional (C)'. ... Looking for compiler 'Microsoft Windows SDK 7.1 (C)' ... ... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1' InstallationFolder ...Yes ('C:\Program Files\Microsoft SDKs\Windows\v7.1\'). ... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VC7' 10.0 ...Yes ('c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\'). ... Looking for file 'c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\cl.exe' ...Yes. ... Looking for folder 'c:\Program Files (x86)\Microsoft Visual Studio 10.0' ...Yes. Found installed compiler 'Microsoft Windows SDK 7.1 (C)'. ... Looking for compiler 'Microsoft Windows SDK 7.1 (C)' ... ... Looking for registry setting 'HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\v7.1' InstallationFolder ...Yes ('C:\Program Files\Microsoft SDKs\Windows\v7.1\'). ... Looking for registry setting 'HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\SxS\VC7' 10.0 ...Yes ('c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\'). ... Looking for file 'c:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\amd64\cl.exe' ...Yes. ... Looking for folder 'c:\Program Files (x86)\Microsoft Visual Studio 10.0' ...Yes. Found installed compiler 'Microsoft Windows SDK 7.1 (C)'. MEX configured to use 'Microsoft Windows SDK 7.1 (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. In the near future you will be required to update your code to utilize the new API.

To choose a different language, select one from the following: mex -setup C++ mex -setup FORTRAN

Answer 1

[Bruno Luong]

It means you need a C-compiler installed on your computer

[Tharangini Sankarnarayanan]

So what C-compiler needs to be installed to solve the problem?

[Bruno Luong]

Go here and click on supported compilers column of your MATLAB version

[Tharangini Sankarnarayanan]

Must all the below be installed then:

Microsoft Visual C++ 2017 product family(Patch required), Microsoft Visual C++ 2015 Professional, Microsoft Visual C++ 2013 Professional, Microsoft Visual C++ 2012 Professional, Microsoft Windows SDK 7.1, Intel Parallel Studio XE 2016 for C/C++, Intel Parallel Studio XE 2015 for C/C++, Intel C++ Composer XE 2013, Intel Parallel Studio XE 2016 for Fortran, Intel Parallel Studio XE 2015 for Fortran, Intel Visual Fortran Composer XE 2013, Microsoft .NET Framework SDK 2.0, 3.0, 3.5, 4.0, 4.5, 4.6, Java Development Kit (JDK) 1.7, lcc-win64.

[Bruno Luong]

That the list of all supported compiler, you only need one of any of those.

[Tharangini Sankarnarayanan]

I have installed MinGW 4.9.2 C/C++ and I have still been getting the error. Is there a way I could sort it out?