InDesign detects the document to be damaged and repairs it.
Using InDesign 20 (15.0.1) Trying to open files I get these error messages.
I have tried opening many documents with ID 20 and get these messages. Files will open fine using InDesign 19 (14.0.3). This issue just started yesterday after using ID 20 for about a month.
InDesign detected the file to be damaged and repaired it, we notify customers about the repair process using these messages.
There are multiple factors both internal and external to InDesign application that can lead to document corruption which we are addressing from time to time as we progress and would recommend you to be on the latest InDesign version.
Adobe InDesign Team
Haven't seen that one yet but similar situation going on when opening indd docs. Using ID 2020, ver. 15.0.2. Didn't have any issues the first couple of months or so then it just started happening. (See screenshot)
I click OK then double click on doc again and it opens like normal. Not a big deal, just annoying.