Hi Renze Marree,
The error message you received says that some the of revisions already merged to your branchline/mainline. You can use the Advanced merge option and try merging your code one by one revision (Selecting the start and end revision as same) to resolve this. For more information check the below link https://docs.mendix.com/refguide/merge-dialog#2-3-advanced-merge
Thanks!
Hi Renze Marree,
Already your code has merged in to mainline. Hence you’re getting this exception.
Just try as Ananthi said an approach, it will work.
Thank you!