Mex files missing in installation

I failed to install cvx on windows and on linux, these errors pop up:

Verfying CVX directory contents:
No missing files.
ERROR: one or more MEX files for this platform are missing.
These files end in the suffix “.mexw64”. CVX will not operate
without these files. Please visit
http://cvxr.com/cvx/download
And download a distribution targeted for your platform.

Verfying CVX directory contents:
No missing files.
ERROR: one or more MEX files for this platform are missing.
These files end in the suffix “.mexa64”. CVX will not operate
without these files. Please visit
http://cvxr.com/cvx/download
And download a distribution targeted for your platform.

I did check mexext on both Matlab before downloading.
Any idea how to fix this? Thanks!

Which file did you download? I just grabbed both of the mexw64 downloads right from the web site and the files are there.