The specified module could not be found error when using the backslash operator!

Hello, I'm running MATLAB 2014a 64xbit and I get an error message pop up every time I try and use the backslash operator (\) in my funtions. this is the exact error

BLAS loading error:
mkl_custom.dll: The specified module could not be found.

and then it'll tell me where the error is for example

Error in PS6Q4 (line 9)
B=(A'*A)\(A'*y)

This error appears for all my functions which this operator is included, this is the m-file for that specific case above.

function PS6Q4

x=[1.14 5.62 0.31 2.21 3.54 2.87]';
y=[3.40 66.2 0.43 8.95 32.8 19.4]';
A=[x.^2 x]
B=(A'*A)\(A'*y)

end

If someone can please help me with a solution to this, that would be much appreciated!

[Mostafa]

-------- | | | | | | | | | | UPDATE | | | | | | | | | | --------

I have found a very simple solution to this issue, I'll upload steps for anyone else who will ever encounter this issue.

Step 1 - Click the Start button, go to the Settings menu, and select Control Panel.

Step 2 - On the Control Panel menu, select System.

Step 3 - In the System Properties dialog box, click the Advanced tab.

Step 4 - On the Advanced panel, click the Environment Variables button.

Step 5 - In the Environment Variables dialog box, click the New button in the User variables section.

Step 6 - In the New User Variable dialog box, enter the name of the variable as BLAS_VERSION and set the value of the variable to the name of the MKL library: mkl.dll .

Here is a link to a pdf with instructions on how to do this as well (page 10-40) http://www.mn.uio.no/astro/english/services/it/help/mathematics/matlab/rn.pdf

[Hirokazu Tanaka]

Deleting the Environment Variable "BLAS_VERSION" (if defined) could solve the issue? If not defined, MATLAB will just use the library that's included in the software package.