How to resolve dlfcn.h error in simulink?

I am working with arduino and trying to do spectrum analysis. Butim getting this contniously. I googled it but unfortunately i couldnt find any solutions for it.

C:/PROGRA~1/MATLAB/R2016b/toolbox/shared/dsp/vision/matlab/include/HostLib_FFT.c:7: C:/PROGRA~1/MATLAB/R2016b/toolbox/shared/dspblks/extern/include/HostLib_rtw.h:15:21: fatal error: dlfcn.h: No such file or directory # include dlfcn.h ^ compilation terminated. gmake: * [HostLib_FFT.o] Error 1 ### Creating HTML report file powerspectrum_test_codegen_rpt.html ### Build procedure for model: 'powerspectrum_test' aborted due to an error. Error(s) encountered while building "powerspectrum_test": ### Failed to generate all binary outputs.

Answer 1

[Mandar Patwardhan]

These errors may be occurring due to stale build folders. Please delete the 'slprj' folder and the everything else from the build folder including the MEX files. Rebuild the model to generate the new MEX files, makefile and other build files and check if you still get an error.

[Mandeep Rana]

It still doesn't work...