Rails Application Failed to start properly

Hi all,

I have created a new application and Its working fine in my local
system and also in the server.

But after some days I have added one new controller(projects) in the
admin module so that the admin can manage the projects. Its also working

All the things are working in the application but in the admin module,
admin should see the list of users and if the admin click on the
particular user he should get the details of the user. But if i click on
the user its giving an error

“Rails Application Failed to start properly”. But this worked two days
back also.

I’m getting till the list of users and not getting the details of the

Can u please tell me wats the problem behind it??