Not able to use installed Matlab Toolbox (Image processing)

Hello, I recently bought student license for MATLAB. Installation went well - image processing toolbox was listed and I selected it for installation. Everything installed correctly. Then I wanted to do some image processing using the 'strel' function. But MATLAB keeps telling me:

To use 'strel', the following product must be licensed, installed, and enabled:
Image Processing Toolbox

I googled a bit and found the 'ver' command:

 MATLAB                                                Version 9.3         (R2017b)
M_Map - mapping toolbox (Author: [e-mail])     Version 1.4h        Nov     
Optimization Toolbox                                  Version 8.0         (R2017b)
Signal Processing Toolbox                             Version 7.5         (R2017b)

So it only sees a few of the toolboxes i should have. When I launch the installation again, it tells me that all the toolboxes are installed, i should have the license to use them, but MATLAB does not see the toolboxes...

Any help would be appreciated! My installation is Ubuntu 16.04.

Answer 1

[Jakub Micanek]

Fixed it - the problem was in me having two MATLAB installations - one with work license and second with student license. I had to reinstall MATLAB to a new folder and set up a new alias for matlab_student.

Similar answer here

[Romain Guibert]

Hi there :)

I have been struggling with the same problem all day... I downloaded Matlab with a licence from my university (which includes the Stats and ML toolbox), and I have the same problem : toolbox installed, licensed, enabled, and no way to use its function. But I only have 1 version of matlab installed... here are some command lines to check what I said :

>> matlab.addons.installedAddons

ans =

19×3 table

                      Name                       Version    Identifier
    _________________________________________    _______    __________

    "Model Predictive Control Toolbox"           "6.0"      "MP"      
    "MATLAB Compiler"                            "6.5"      "CO"      
    "DSP System Toolbox"                         "9.5"      "DS"      
    "Curve Fitting Toolbox"                      "3.5.6"    "CF"      
    "Partial Differential Equation Toolbox"      "2.5"      "PD"      
    "Neural Network Toolbox"                     "11.0"     "NN"      
    "Optimization Toolbox"                       "8.0"      "OP"      
    "Simulink Control Design"                    "5.0"      "SD"      
    "Signal Processing Toolbox"                  "7.5"      "SG"      
    "Simulink"                                   "9.0"      "SL"      
    "Symbolic Math Toolbox"                      "8.0"      "SM"      
    "Statistics and Machine Learning Toolbox"    "11.2"     "ST"      
    "Parallel Computing Toolbox"                 "6.11"     "DM"      
    "Mapping Toolbox"                            "4.5.1"    "MG"      
    "MATLAB Compiler SDK"                        "6.4"      "MJ"      
    "Global Optimization Toolbox"                "3.4.3"    "GD"      
    "Image Processing Toolbox"                   "10.1"     "IP"      
    "Control System Toolbox"                     "10.3"     "CT"      
    "Communications System Toolbox"              "6.5"      "CM"

>> matlab.addons.isAddonEnabled('ST')

ans =

logical

   1

But no way to use 'lasso' function from the package and same error as you...:

>> lasso
To use 'lasso', the following product must be licensed, installed, and enabled:
Statistics and Machine Learning Toolbox