Error while trying to retrieve text for error ORA-01019

My manager wanted me to check out this error which occured at a remote computer trying to connect our oracle database.
After a google operation and i came to a quick result.

There were more than one ORACLE_HOME path inside system variables.
So to overcome it. Check out the paths that are in system variables.

In my case there were more than one path as shown below in an order;
C:\oracle\BIToolsHome_1;C:\app\HAMDI\product\11.2.0\dbhome_1\bin;C:\oracle\BIToolsHome_1

So i remove the paths written repeatedly. Then we were able to make it connecting to our database.

The source that guided me to solve this issue;

http://stackoverflow.com/questions/12560925/error-while-trying-to-retrieve-text-for-error-ora-01019