You have probable some syntax error in source code.

But,
the deepest reason of this error is the circular depencency.

So remove this depedency. Yes remove it, move some functions to external module or something. It is always good idea to do it.

If you want fast workaround - use 'require' for this circular module.

The difference between use and require is that require is including module during the execution time, and use at the compilation time (equivalent to use 'require' in BEGIN section). And this is a problem for Moose