Unable to create a net application in studio

[SrinivasuB]

I just started learning the ServiceNow in developer.servicenow.com. 
now i had an issue in learning module-4, I need to create a new application with the scoped, it is showing("This scope is already taken by another application"). i tried to change the name and every thing, but still showing the same error. 
could any one help me with this issue 

[Mark Manders]

What kind of instance are you on?  Are you on a PDI?

[SrinivasuB]

Yes, I am using PDI 

[Dr Atul G- LNG]

Check my response @SrinivasuB 

[Dr Atul G- LNG]

Hi @SrinivasuB 

Solutions

1. Use ServiceNow Studio or Creator Studio:

• These tools allow you to specify and modify the application scope during creation.
• Ensure the scope identifier you choose is unique within your instance. See next section.

2. Check Existing Application Scopes:

• Navigate to the list of scoped applications by typing sys_scope.list in the application navigator and pressing Enter.
• Review the list to see if the desired scope already exists.

3. Choose a Unique Scope Identifier:

• If a conflict exists, modify the application name or manually set a distinct scope identifier to ensure uniqueness.

https://www.servicenow.com/community/app-engine-articles/resolving-this-scope-is-already-taken-by-an...