Bad constraint (plone.app.widgets) when running buildout in plone 5

Plone Support
1

Hi, I am working on plone 5 and when I run ./bin/buildout -c develop.cfg I got the following error:

The constraint, 1.6.0, is not consistent with the requirement, 'plone.app.widgets>=2.0.0.dev0'.
While:
  Installing instance.

I notice that setup.py of plone.app.content requires 'plone.app.widgets>=2.0.0.dev0' and Plone versions.cfg still has plone.app.widgets = 1.6.0. If I change plone.app.widgets = 1.6.0 to plone.app.widgets = 2.0.0.dev0 in versions.cfg, I got new error:

Getting distribution for 'plone.app.widgets==2.0.0.dev0'.
While:
  Installing instance.
  Getting distribution for 'plone.app.widgets==2.0.0.dev0'.
Error: Couldn't find a distribution for 'plone.app.widgets==2.0.0.dev0'.

Does anybody have idea how to solve this problem?
Thank you,

Ega

2

Try
plone.app.widgets==2.0.2