Hi 
They replied me to make plugins for julia to automatically support qt creator in julia. Although they also told to make my own which is quite hard. But may be i can do it .
You can use a “generic project” (New > Project > Import > Import existing project) to create a Qt Creator project from your existing sources (if you don’t just want to open individual files), and register a language server for Julia (GitHub - julia-vscode/LanguageServer.jl: An implementation of the Microsoft Language Server Protocol for the Julia language. ? Tools > Options > Language Client). When you open a .jl file, Qt Creator will suggest to you to download a highlighting description file (uses KDE/Kate’s syntax highlighting framework).
Set up custom commands for building and running in Projects mode.Everything else is out of scope, except if someone happens to write a plugin for it.