Parse Server Upgrade to v4.2: Unable to ensure uniqueness for user email addresses

Parse Server 📡
#1

I have recently upgraded parse-server to v4.2. I have also updated Mongo to v4.2 (It’s a Replica Set configuration). Now when parse-server is raised, the following error appears “Unable to ensure uniqueness for user email addresses: Tried to ensure field uniqueness for a class that already has duplicates.”

The detailed error is this:

{
"message": "Unable to ensure uniqueness for user email addresses: Tried to ensure field uniqueness for a class that already has duplicates.",
"code": 137,
"level": "warn",
"stack": "Error: Tried to ensure field uniqueness for a class that already has duplicates.\n    at _adaptiveCollection.then.catch.error (/parse/node_modules/parse-server/lib/Adapters/Storage/Mongo/MongoStorageAdapter.js:569:15)\n    at <anonymous>\n    at process._tickDomainCallback (internal/process/next_tick.js:229:7)"
}

The error is caused by the _User class that has the username and email fields with the same data. Any ideas on how to fix the problem or make the parse-server not do this check.

#2

Hi, this post was flagged as being typed ‘suspiciously fast’, I’ve approved it but if you’ve posted this else where it would be helpful if you could let us know.

#3

Please avoid cross-posting, as mostly the same people are active on either site. I have answered on your SO post where you posted it first.

#4

Thanks @Manuel! I’m going to unlist this topic.

1 Like
#6