Empty WebUI After Upgrade
Symptom
After upgrading an AIMMS Project developed in AIMMS 4.59 or older, directly to AIMMS 4.68 or newer, the WebUI appears empty.
Explanation
Considerable thought and refactoring work has gone into serialization of the WebUI during the 4.60 to AIMMS 4.68 and newer in several steps; to make the serialization of the WebUI specification:
More robust
More git friendly, and
Much faster
Solution
In the article on the evolution of the WebUI several steps are described. By at least executing the following steps, the WebUI created is retained.