Xcode 8 signing errors, can't log in with account and no provisioning profile

When I run my application, two errors appear in the Signing part of the General tab of the project. One says, "The operation couldn't be completed. Unable to log in with account ________" while the other says "No profiles for ________ were found." It mentions that Xcode couldn't find a provisioning profile. What does this mean, and how do I fix it?

I can't take credit for this solution, it came from BrianBatchelder on the apple forum.

I had to go to "XCode" -> "Preferences" -> "Accounts", where it turned out my Apple ID had timed-out. After logging-in there, and then restarting Xcode, my profile was automatically "repaired", and all is now well.

Re-starting Xcode is important there, it doesn't work without it.

I got around it by unchecking and rechecking:

Project Settings -> General -> Signing -> 'Automatically manage signing'

IF this not work then try second option:

I was having this same issue. Here is what I did that solved the problem for me.

1. First I right clicked on each of the two profiles that would "grey-non-download" and moved to trash.

2. Then I deleted the developer account within Xcode.

3. I re-added the developer account, went back to details and download all.

It worked for me, hope this helps.

Be sure that you have the right signing identity for : App : General and Build Settings AppTests : General and Build Settings

In my case for some reason the AppTests started to have the wrong settings out of nowhere.

This error could happen when XCode is unable to connect to Apple's server. You can check Apple's system status here.

In my case, my system date & time was 2 weeks off