Hello @Ahmed Rauf , Thanks for using Microsoft Q&A Platform.
This is a known issue. You can't create new LUIS resources anymore. You have to create a language resource and can use CLU which is a newer version: https://learn.microsoft.com/en-us/azure/ai-services/language-service/conversational-language-understanding/quickstart?pivots=language-studio
For information on migrating your existing LUIS apps to CLU projects visit this document: https://learn.microsoft.com/en-us/azure/ai-services/language-service/conversational-language-understanding/how-to/migrate-from-luis?tabs=luis-portal&WT.mc_id=Portal-Microsoft_Azure_ProjectOxford
I hope this helps.
Regards,
Vasavi
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