Could not load type from assembly

[Anonymous]

I am experiencing the following issue when debugging:

The problematic call:

ExternalDefinitonCreationOptions options = new ExternalDefinitonCreationOptions("test", Autodesk.Revit.DB.ParameterType.Number);

Throws the following error:

Could not load type 'Autodesk.Revit.DB.ExternalDefinitonCreationOptions' from assembly 'RevitAPI, Version=16.0.0.0, Culture=neutral, PublicKeyToken=null'.

[jeremytammik · Accepted solution]

Ensure that you have set Copy Local to false on the Revit API assemblies:

http://thebuildingcoder.typepad.com/blog/2011/08/set-copy-local-to-false.html

Cheers,

Jeremy

[Anonymous]

No did not help it.

Would it have something to do with a plugin thats using 2015 API, but im debugging it in 2016?

[Anonymous]

Ok, so debugging this adding with Revit 2015 did not trigger the error. So this has to do with 2016... Any suggestions? Till this point everything in 2016 worked with the 2015 api

[jeremytammik · Accepted solution]

http://thebuildingcoder.typepad.com/blog/2015/06/adn-labs-xtra-multi-version-add-ins-and-cnc-direct....

[Anonymous · Accepted solution]

http://thebuildingcoder.typepad.com/blog/2015/04/whats-new-in-the-revit-2016-api.html#4.08

[jeremytammik]

Oh, so trivial.

Sorry about that  🙂

Cheers,

Jeremy

[Anonymous]

😉

No problem thanks for all your awesome work regarding to blogs and information.

We chose not to keep BC since all our team are now working with 2016. Maybe from 2016 to 2017 we'll have to look into it. Thanks again.

[jeremytammik]

BC = backwards compatibility?

Never heard that one before...

[Anonymous]

Correct. It's a pretty common term. So we all learned something today 😉