MEX compilation failed with message: C compiler produced errors. See build log for compiler error:

simple function file i.e performing addition of 2 input variables. this function file is converted to c code using matlab coder. further, for sil testing i have followed the steps as in the document i.e link : https://in.mathworks.com/help/ecoder/ug/software-in-the-loop-sil-execution-using-the-project-interface.html. but i am getting the error as mentioned above and in the build log it is coming like...

ninja: error: '/lib/addOne/interface/_coder_addOne_info.c', needed by '_coder_addOne_info.o', missing and no known rule to make it

??? MEX compilation failed with message: C compiler produced errors.

See build log for compiler error:

Code generation failed: View Error Report

plz help me

[Jan]

And what do you find in the error report?

[Jeevan Kulal]

[Benjamin Thompson]

How are you running mex. What is the command line you are using? Do you have a compiler selected using "mex -setup C"? If so what is the compiler? Do you see any more information if you add the -v verbose mode switch to your mex command line?

[Jeevan Kulal]

Yes,I have a compiler selected using "mex -setup C" i.e MInGW-w64.

What is the command line you are using?- Can I get more details on this because I am not using any command line.

[Jan]

The most important information is still missing: "See buildlog for compiler errors". You will find the details there.

Answer 1

[Akshat Dalal]

Hi Jeevan,

This issue might be happening because the mex compiler is unable to find the CPP file for your function.This might happen as the CPP is a handwritten file instead of a auto-generated file.

This issue can be resolved if you could provide the missing file "_coder_addOne_info.c" to your path using the below command

srcFile = coder.const(fullfile(path, '_coder_addOne_info.c'));