This issue is affecting one project, which is our test project for feature level data import from Rally.
When opening the project, the error is given:
"Unable to open project PR91886. Operation Disallowed: AllocCurve cannot be set to null"
This is due to the PRTEAM.pralloccurve being null.
Run query to review project in question:
select * from prteam
where prprojectid = 5xxxxx
and pralloccurve is null
Perform either of the following:
1. Remove the Expense resource from the project team.
2. Populate the allocation by setting the '% Allocation'
Set Logging with following article:
https://knowledge.broadcom.com/external/article/26504