How to fix '.' is not an internal or external command error

I have followed few links to try and solve this issue, such as link1 , where they have asked to me include the path of the exe in the environment variables. This is the following command I tried, to get this error

       D:\Gesture Recognition\Gesture Recognition\Debug>./"Gesture Recognition.exe" 
       rawrec1.trr

and the error

    '.' is not recognized as an internal or external command,
     operable program or batch file.

I included the gesture recognition exe path into the systems and user variables of the environment variables. Even after booting the system, the error still persisted. Can anybody help me to solve this or fix this? Thanks in advance

Just leave out the "dot-slash" ./:

D:\Gesture Recognition\Gesture Recognition\Debug>"Gesture Recognition.exe"

Though, if you wanted to, you could use .\ and it would work.

D:\Gesture Recognition\Gesture Recognition\Debug>.\"Gesture Recognition.exe"

Replacing forward(/) slash with backward(\) slash will do the job. The folder separator in Windows is \ not /