assembly reference error
Dear Amith,
Did you copy the code you are using from another project where Revision Namespace existed and you forgot about it?
This error it is pretty self explanatory. It is telling you that a missing Assembly reference cannot be found in your code and you are referencing to it. I know it sounds repetitive but that is pretty much it. See the following link.
https://support.microsoft.com/en-us/kb/304656
The screenshot provided does not help, since there is not a lot of information other than the one you already described. So, maybe providing a bit more information about your code will help the community identify what you are missing.
Cheers,
Dear Amith,
Yes you are correct, this class got its first version on Revit 2015, so unfortunately 2014 will not have access to such class, sorry for the bad news.
Cheers,
Dear Vinay,
I did a quick search and I saw a couple of post by Jeremy where he points out that the Revision class was one of the major implementations for Revit API 2015.
"
One of the major Revit 2015 API additions is access to revisions.
All prior versions provided very limited access to revision data in a project. Here are some things people achieved in spite of the limitations:
But if you read a bit more you will see there is a Wrapper Class that another API 3rd party developer used to bypass the limitation of the non-existency in Revit 2014 for example.
Here is the link from where I'm quoting Jeremy. http://thebuildingcoder.typepad.com/blog/2014/06/the-revision-api-and-a-form-on-the-fly.html
And here is Max's Revision Wrapper Class for you to use in Revit 2014 http://thebuildingcoder.typepad.com/blog/2013/09/max-revision-wrapper-class.html
Cheers,