Thanks George, it fixed the issue, but when i recreate the index.ejs or main_template.ejs
it does not removing the old route. or if i use different names for the layout page it keeps the deleted ones route. so route.json is the problem.
As i saw by default index.ejs is there when i edit that to set layout page then also it keeps the old route for that page… thats why i went into this issue…
fixed one: