git checkout fails with error - Your local changes to the following files would be overwritten by checkout

Question

I've got this error:

error: Your local changes to the following files would be overwritten by checkout:
    Crashlytics.framework/Versions/A/Crashlytics
    Crashlytics.framework/Versions/A/Headers/Crashlytics.h
    Crashlytics.framework/Versions/A/Resources/Info.plist
    Crashlytics.framework/run
    <my project name>.xcodeproj/project.pbxproj
Please, commit your changes or stash them before you can switch branches.
Aborting

Some questions:

1. I had a clean code base a few moments ago (I'd checked out master). It seems when I run Xcode it creates some locally changed Crashlytics files. How do I stop this from happening?

2. Why has my pbxproj changed? Is it something to do with the Crashlytics code?

Answer 1

Just for the sake of help, I should first state that I'm not familiar with xcode but rather familiar with git so you should not take my response definitely right. In general, you can add those entries to the .gitignore file if you do not want them to be tracked by git.

Meanwhile, I don't advice ignoring the .pbxproj descriptor as stated in this thread answer.

Concerning the other generated files, they may have been generated when you compiled or run some task on your project.