Xcode: What is this blue selection line and how do I get rid of it?

Please refer to these two pics. There's this blue line next to the line number in my code. Hovering over it selects the code. I am not sure how it got there and how to get rid of it.

enter image description here

enter image description here

Clicking that line shows this:

enter image description here

EDIT: for whoever closed this question as "general computing hardware and software on Stack Overflow": this is not that. Plus there are several Xcode UI questions on Stack Overflow:

For example:

How to hide Blue line covering views in xib/Storyboard in Xcode 7.2

How to get rid of blue borders around transparent objects in XCode

Upvotes: 0

Views: 1376

Answers (1)

matt
matt

Reputation: 535138

It's this (last checkbox shown in this screen shot of the prefs):

enter image description here

You can uncheck it, but I advise not to; it's valuable information.

Upvotes: 2

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