Cannot locate installed minGW-64 compiler

I installed the minGW compiler, but Matlab will not locate it.

[Daniel Harvey]

Can you elaborate on when and where the error occurs? Setting up minGW for mex seems to have a lot of pitfalls.

[Walter Roberson]

Also, which of the procedures did you use to install the compiler?

[Kiran]

Give the output of following command:

 mex -setup