Problems using MOSEK

I recently re-installed CVX and MOSEK. Installed the latest version of CVX and MOSEK 9.1 and have an academic licence. The Matlab version is R2014a, and runs in Windows 64. The cvx_setup works fine but it does not locate mex files. Above the message resulting from cvx_setup:


CVX: Software for Disciplined Convex Programming ©2014 CVX Research
Version 2.2, Build 1148 (62bfcca) Tue Jan 28 00:51:35 2020

Installation info:
Path: D:\MyDocuments\cvx_2020\CVX\cvx
MATLAB version: 8.3 (R2014a)
OS: Windows 8 amd64 version 6.2
Java version: 1.7.0_11
Verfying CVX directory contents:
WARNING: The following files/directories are missing:
D:\MyDocuments\cvx_2020\CVX\cvx\sedumi.travis.yml
These omissions may prevent CVX from operating properly.
Preferences:
Path: C:\Users*******\AppData\Roaming\MathWorks\MATLAB\cvx_prefs.mat
License host:
Username: *********
Host ID: 00ff0c646eaa (eth2)
Installed license:
Organization: Instituto Superior de Engenharia de Coimbra
Contact: **********************************
License type: academic
Named user: ********
Host ID: e0cb4e70db12
Expiration: 2021-09-25 (365 days remaining)
Status: verified

Setting CVX paths…already set!
Searching for solvers…5 shims found.
2 solvers initialized (* = default):

  • SDPT3 4.0 {cvx}\sdpt3
    SeDuMi 1.3.4 {cvx}\sedumi
    5 solvers skipped:
    GLPK
    Could not find a GLPK installation.
    Gurobi unknown {cvx}\gurobi\w64
    No valid Gurobi license was found.
    Mosek unknown {cvx}\mosek\w64
    Unexpected MEX file failure:
    Invalid MEX-file
    ‘D:\MyDocuments\cvx_2020\CVX\cvx\mosek\w64\mosekopt.mexw64’:
    Cannot find the file.
    Mosek_2 unknown G:\Mosek\9.1\toolbox\R2015a
    Unexpected MEX file failure:
    Invalid MEX-file ‘G:\Mosek\9.1\toolbox\R2015a\mosekopt.mexw64’:
    Cannot find the file.
    Mosek_3 unknown G:\Mosek\9.1\toolbox\R2015a
    Unexpected MEX file failure:
    Invalid MEX-file ‘G:\Mosek\9.1\toolbox\R2015a\mosekopt.mexw64’:
    Cannot find the file.

In case someone has suggestions of what is wrong and how to fix I will be grateful.
Cheers

Your version of MATLAB is too old for Mosek 9.x.

The Optimization Toolbox for MATLAB can be used with MATLAB version R2015a or newer on all 64-bit platforms.

I suspect running mosekdiag at rhe MATLAB command line would reveal the failure.