I have a class with constructor like this:

public UserRepository(IBlockRepository blockRepos)
{
}

and again, I have another class with the constructor like this:

public BlockRepository(IUserRepository userRepo)
{
}

this causes the Windsor error:

Castle.MicroKernel.Handlers.HandlerException: Can't create component 'UserRepository' as it has dependencies to be satisfied. UserRepository is waiting for the following dependencies

How do I fix this?