Why has Matlab stopped recognizing the installed Compiler?

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SM
SM 2013-3-28
Everything was working and I was able to generate C code from a Simulink model just fine, but today, I get the following error:
An installed compiler was not detected. Certain simulation modes, as well as host-based coder builds require that a compiler be installed. Please install one of the supported compilers for this release as listed at:
http://www.mathworks.com/support/compilers/R2011a/win64.html
MATLAB must be restarted after the compiler is installed.
I am running 64 bit Windows 7 OS.
I am running Matlab R2011a (64 bit).
I have installed Visual C++ 2010 express.
I have installed Windows SDK 7.1
Inside Matlab, I have run 'mex -setup,' selected the Microsoft Visual C++ Compiler that it finds, and entered 'y' to save the information.
I have tried every possible combination of installing, uninstalling, re-installing Matlab, Visual C++ 2010 express, and the Windows SDK 7.1.
Why would mex -setup work for choosing the compiler but then fail to recognize that it has in fact been set up (especially given that it worked previously)?
  1 个评论
Matt J
Matt J 2013-3-28
编辑：Matt J 2013-3-28
Inside Matlab, I have run 'mex -setup,' selected the Microsoft Visual C++ Compiler that it finds, and entered 'y' to save the information.
The error message told you to restart MATLAB after installing the compiler. Did you do that, too?

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