Publishing an Application with the same version gives a cryptic User name or password invalid error

[Christopher_Mal]

I learned something very interesting from my Australian brothers Steve Farrar and Zac Murray today.   Quick shout out to these Technical Consultants - they are geniuses and I thank them for imparting their wisdom with me.

If you happen to get the following "Upload Failed" "YourAppName" could not be uploaded due to the following error: User name or password invalid, DONT panic - all you need to do is make sure you DO NOT publish your application with an equal or less version than you have already published previously.   Change the version and you will be right as rain.

The error below is seen when trying to publish a version of an application ("Make App available on other instances") without increasing the version number.   The error you get is a bit misleading.

Some other community post addressing the same issue:

Error in making application available to other instances

Why am I seeing "upload failed" after I try to Make my app available on other instances?

[stephenfarr]

Nice one Chris. Just to add, this was seen on Fuji - Patch 4, it may have been 'improved' since then. 'Core Platform' was the app we were uploading - that will be different for everyone else

[Community Alums]

What we have to put in version actually?

[stephenfarr]

My recommendation is to use semantic version e.g. 1.2.3 and increment those numbers as appropriate.

More on semantic versioning here: 

https://semver.org/