This is a totally wild guess, but is there a .gitmodules file in your project root? The symptoms you’ve described sound like there might be a submodule set up for vendor/radiant, and if it wasn’t initialized then all the files would be missing.
There is no .gitmodules file in root. is there compulsory to be in root application? because application runs locally fine but there is an issue for ec2 server.
i have re-install rails, ruby, rubygems and radiant. is it any idea for this error to anyone what to do after that? i am confused for that. because same configuration is there for locally and its work fine. but for ec2 server it gets error. anyone knows about this error? i am stuck at that error. please give me reply asap.