Error: Couldn't find a distribution for 'ploneintranet'.

[macagua]

When I run buildout show me the follow error:

We have the distribution that satisfies 'Products.ZCatalog==3.0.2'.
Getting required 'ploneintranet'
  required by plonesocial.activitystream 0.7.0.dev.
We have no distributions for ploneintranet that satisfies 'ploneintranet'.
Couldn't find index page for 'ploneintranet' (maybe misspelled?)
Getting distribution for 'ploneintranet'.
Couldn't find index page for 'ploneintranet' (maybe misspelled?)
While:
  Installing instance.
  Getting distribution for 'ploneintranet'.
Error: Couldn't find a distribution for 'ploneintranet'.

[macagua]

Fixed adding into config/sources.cfg file the following buildout configuration:

auto-checkout =
     ...
     ploneintranet

depends =
     ...
     ploneintranet

[sources]
...
ploneintranet  = git https://github.com/ploneintranet/ploneintranet.git