module that imports module error

[simon place]

i'm 'replacing' modules, for development, with local ones, this has worked fine.

but now i am importing a module that itself imports another replaced module, i get 

'go: cycle imports
modulo: malformed module path "modulo": missing dot in first path element

'

i thought module names were just anything unique, only after uploading a URL.

and

'modulo' module path "modulo" can't be malformed when it builds/runs when being tested etc.

[simon place]

also dotless domains are provided for in the standard.