Matlab R2015a installation error in Ubuntu 14.04

My input file is

mode=silent
agreeToLicense=yes
destinationFolder=/opt/mcr
fileInstallationKey=XXXXX-XXXXX-XXXXX-XXXXX
lmgrFiles=false
lmgrService=false
product.MATLAB

I run command like this

$ ./install -inputFile my_input.txt

And this error appears

(Jun 23, 2015 06:23:19) Starting local product/component search in download directory
(Jun 23, 2015 06:23:19) Searching for archives...
(Jun 23, 2015 06:23:19) Reading /root/Downloads/MathWorks/R2015a/archives
(Jun 23, 2015 06:23:19) 12 files found in /root/Downloads/MathWorks/R2015a/archives
(Jun 23, 2015 06:23:19) Reading /root/Downloads/MathWorks/R2015a
(Jun 23, 2015 06:23:19) 16 files found in /root/Downloads/MathWorks/R2015a
(Jun 23, 2015 06:23:19) Reading /root/Downloads/MathWorks/R2015a/archives
(Jun 23, 2015 06:23:19) 12 files found in /root/Downloads/MathWorks/R2015a/archives
(Jun 23, 2015 06:23:19) Archive search complete.  40 total files found.
(Jun 23, 2015 06:23:19) Assembling product list...
(Jun 23, 2015 06:23:20) Completed local product/component search
(Jun 23, 2015 06:23:20) Error: Unable to locate required installation files.

Using a File Installation Key requires you run the installer from a MATLAB DVD or from a directory which contains files previously downloaded via the installer.

To obtain the missing files,  click Back on the previous screen and select Log in with a MathWorks Account or contact your MATLAB license administrator.
(Jun 23, 2015 06:23:20) Exiting with status -2
(Jun 23, 2015 06:23:21) End - Unsuccessful.

I try to search but don't know how to catch this error. Can anyone help me?

Answer 1

[Ganesh Gaonkar]

This issue can happen if the installer is damaged or the File installation Key is not matching the products that has to be installed.This link provides some debugging steps which will hold partially relevant for your error also.