Cannot create a new Nios II application

Greetings to everyone. I had a problem when I was running quartus2 and nios2eds in windows. I can’t create a new Nios II application and BSP from template. It was showing an error message:
unable to create project
Reason:
Failed to execute: ./create-this-app –no-make
chmod: changing permissions of `.': Permission denied
chmod: changing permissions of `./create-this-app': Permission denied
I will be grateful if someone fixes it.
