Kentico Support.
At this time we were able to upgrade to Kentico 7 by changing code files to reference the correct namespaces and new properties (i.e. NodeID to DocumentID). I compiled the application and compilation succeeded.
However, when trying to pull the site we keep getting null reference exception on PageInfo variables and TreeNode variables.
Example:
CMS.DocumentEngine.PageInfo currentPage = CMSContext.CurrentPageInfo;
CMS.DocumentEngine.TreeNode currentPage = CMSContext.CurrentDocument
Attached is an example image of the error (the null object is currentPage property):
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