why issue types "story" cannot added a bug in sub task

[Rohit Singh]

Suppose i create some story points for one projects and create a sprint then can i added a bugs in sub task of these story points 

[Nic Brough -Adaptavist- · Accepted solution]

I'm sorry, but that makes no sense.

Not sure what "create story points" means (do you mean put story points on issues?), and "added a bugs in sub task of these story points" is nonsense.