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TypeError: get_field() takes exactly 2 arguments (3 given)

by Alex Limi — last modified Dec 30, 2008 03:08 PM
A common error when the API has changed.

It will look something like this:

 Error Type
  TypeError

 Error Value
  get_field() takes exactly 2 arguments (3 given)

If you get this error when trying to add a Plone site in your Zope, it means that you have a version mismatch somewhere - either running Plone 2.0 on CMF 1.5 or Plone 1 on CMF 1.4 or something else entirely.

Check all your package/product versions, and make sure it is a valid combination. The Plone Core tarball always ships with the correct dependencies, use that as reference if you are not certain which version combinations are valid.