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Why can't MEX find a supported compiler in MATLAB R2015b after I upgraded to Xcode 7.0?

조회 수: 188(최근 30일)
I installed Xcode 7.0 on my Mac and tried to use MEX. I receive the following error at the MATLAB command prompt:
 
>> mex -setup
Error using mex
No supported compiler or SDK was found. For options, visit
http://www.mathworks.com/support/compilers/R2015a/maci64.html
 
Why does MATLAB not recognize the Xcode 7.0 installation on my Mac?

채택된 답변

MathWorks Support Team
편집: MathWorks Support Team 28 Aug 2017
By default, MATLAB R2015b does not detect Xcode 7.x. To add support for Xcode 7.x in MATLAB R2015b, download the files attached to this article. Please follow these instructions to download and install the files (screenshots were taken in Mac OS X 10.10.5 Yosemite):
1) Download the file xcode7_mexopts.zip, which you will find attached to this article. Extract the contents of xcode7_mexopts.zip to your Downloads directory. Extracting the ZIP file will create a directory in Downloads called xcode7_mexopts.
2) Open MATLAB R2015b. Navigate to MATLAB's preference directory by typing the following command in the command window:
>> cd( prefdir );
3) Using MATLAB's "Current Folder" browser, ensure that there are no XML files that begin with "mex_" (e.g. mex_C_maci64.xml). If such files exist, remove them from the preference directory.
4) Navigate to the MATLAB directory. In MATLAB, you can do so by entering the following command at the MATLAB command prompt:
>> cd( fullfile( matlabroot, 'bin', 'maci64', 'mexopts' ) );
5) Back up the original files in the mexopts directory. You can run the following MATLAB commands to back up the files:
>> mkdir mexoptsContentsOLD
>> movefile *.xml mexoptsContentsOLD/
Keep the backup separate from the downloaded files such that you can revert to the backup files if necessary.
6) Replace any files in the mexopts directory with the corresponding files in the Downloads folder, xcode7_mexopts. You can replace the files in MATLAB by entering the following command at the MATLAB command prompt:
>> movefile( '~/Downloads/xcode7_mexopts/*.xml', '.' );
7) Restart MATLAB R2015b. Execute "mex -setup" at the MATLAB command prompt as shown below and verify that MEX detects Xcode 7.0.
>> mex -setup
Alternate Solution:
The SDK needed could be in the Xcode package with the path:
/Applications/XCODE/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk
Please place this in:
/Library/Developer/CommandLineTools/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk 
This should resolve the issue.
If MEX continues to return an error, please contact MathWorks Technical Support.
 

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Utkarsh Anand
Utkarsh Anand 9 Dec 2017
using a '13' works out for me somehow.
Thanks for the suggestion Elco

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추가 답변(12개)

XIE STONE
XIE STONE 21 Sep 2016
I try and it did not work for me. :(
Any good idea?

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표시 이전 댓글 수: 8

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Hamid Sarfraz
Hamid Sarfraz 25 Feb 2016
편집: Hamid Sarfraz 25 Feb 2016
mex -setup
MEX configured to use 'Xcode with Clang' 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. You can find more information about this at: http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.
To choose a different language, select one from the following:
mex -setup C++
mex -setup FORTRAN
MEX configured to use 'Xcode Clang++' 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. You can find more information about this at: http://www.mathworks.com/help/matlab/matlab_external/upgrading-mex-files-to-use-64-bit-api.html.
Error using mex
No supported compiler or SDK was found. For options, visit http://www.mathworks.com/support/compilers/R2015b/maci64.html.
any explanation(solution) for this ?

  댓글 수: 1

Esha Bhargava
Esha Bhargava 4 May 2016
If the workaround provided above does not work for you, please contact MathWorks Technical Support.

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Brigitte Reniers
Brigitte Reniers 1 Mar 2016
편집: Walter Roberson 2 Mar 2016
I did all that and I still get this error:
mex Gamma4DCPU.cpp
Building with 'Xcode Clang++'.
Error using mex
/Users/brigitte/Documents/SmartScientificSolutions/Code/Gamma4D/Gamma4DCPU.cpp:111:10:
fatal error: 'malloc.h' file not found
#include <malloc.h>
^
1 error generated.
Does anybody know what it's about?

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Xiaoyu Sun
Xiaoyu Sun 30 Mar 2016
I also get this error.did you solve this problem successfully?

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Pascal
Pascal 30 Mar 2016
worked for me. Perfectly. Thanks

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Richa Gupta
Richa Gupta 25 Apr 2016
If the workaround provided above does not work for you, please contact MathWorks Technical Support.

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cihat tek
cihat tek 18 May 2016
for windows ?
>> mex -setup
Error using mex
No supported compiler or SDK was found. For options, visit
http://www.mathworks.com/support/compilers/R2015a/maci64.html.

  댓글 수: 1

Walter Roberson
Walter Roberson 18 May 2016
The error message suggests you are on OS-X but your question has to do with MS Windows?
For OS-X you should follow the instructions above.

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Hitham
Hitham 13 Jun 2016
편집: David 18 Jan 2017
I have the same problem. I am using MATLAB R2014b (It is said, No supported compiler or SDK was found. For options, visit http://www.mathworks.com/content/dam/mathworks/mathworks-dot-com/support/sysreq/files/SystemRequirements-Release2014b_SupportedCompilers.pdf ).
How to fix it?

  댓글 수: 2

Esha Bhargava
Esha Bhargava 17 Jun 2016
If the workaround provided above does not work for you, please contact MathWorks Technical Support.
Vandana Ravichandran
Vandana Ravichandran 22 Feb 2017
What is your platform and Xcode version? Note that the supported compilers for MATLAB R2014b are Xcode 4.6+ and Xcode 5.0

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Bhavesh Dharmani
Bhavesh Dharmani 27 Jun 2016
I have installed just the Xcode command line tools and it is installed at /Library/Developer/CommandLineTools. So, whether the same solution will work for me?
I have also changed [matlabroot '/bin/maci64/mexopts/clang_maci64.xml'] and [matlabroot '/bin/maci64/mexopts/clang++_maci64.xml'] to search corresponding to mac OSX 10.11. But, nothing works to setup mex.

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Richa Gupta
Richa Gupta 21 Jul 2016
Bhavesh, I would suggest contacting MathWorks Technical Support.

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viktor navorski
viktor navorski 24 Jul 2016
Thank you. The problem was solved on OS X 10.11.6 (15G31)

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ahmed ali
ahmed ali 29 Sep 2016
i want to ask about the detailed steps to download minGW-compiler for mex files for matlab 2015b

  댓글 수: 2

Walter Roberson
Walter Roberson 7 Oct 2016
minGW is not a supported compiler for OS-X (which is what this Question is about). minGW is a port of gcc to MS Windows specifically, and is not relevant to other operating systems.
Anudeep Katragadda
Anudeep Katragadda 21 Oct 2016
@ahamed ali Here is a link from MathWorks documentation that might help you: https://www.mathworks.com/help/matlab/matlab_external/install-mingw-support-package.html

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Fateh Benma
Fateh Benma 24 Jun 2017
i have this error !! why ?? any help >> mex -setup Warning: Xcode appears to be installed, but it has not been configured. Run "osascript -e 'do shell script "xcode-select -switch /Applications/Xcode.app" with administrator privileges'" to configure Xcode. You must be an administrator of this computer to complete this action.
Error using mex No supported compiler or SDK was found. For options, visit http://www.mathworks.com/support/compilers/R2014a/win64. >>

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Yang Gao
Yang Gao 9 Jul 2019
Hi! I have problem with my Matlab_R2019a, and my Xcode version is 11. MacOS version 10.14.5.
I can't find any string that contains MacOSX10.12.sdk or similiar string in my clang and clang++ file.

  댓글 수: 1

Stephanie Wiechers
Stephanie Wiechers 10 Oct 2019
Hi! It does not work with xcode 11. You'll have to download an older version of xcode (eg 8).

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