MATLAB: Do I receive a message that I need MATLAB to install the toolbox

When installing toolbox into an existing MATLAB installation I receive an error message saying:
"One or more of the following products are required to proceed with the installation: MATLAB 7.XX (Not available) You must select a folder where at least one of these products is installed or select these additional products for installation."
XX = specific release of MATLAB

Best Answer

Make sure that you have installed MATLAB prior to installing this toolbox. If you haven't done so, you will need to obtain MATLAB installation files and run the installer.
If MATLAB is already installed, make sure that the toolbox you are trying to install is of the same exact release as MATLAB that is already installed on your computer.
For example, if your MATLAB is R2011a and your toolbox is R2012a, you will not be able to install this toolbox.
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