Unable to open project... cannot be opened because the project file cannot be parsed

Analyse the syntax of your project file. Check it inside your project in terminal:

plutil -lint project.pbxproj

This will show you the errors from the parser.

Possible problem: Some projects set git merging strategy union for project files. This works for most of the times, but will silently kill your project file if it fails. This strategy is defined in the .gitattributes file in your repository.

Steps to be followed:- 1.Navigate to folder where your projectName.xcodeproj 2.Right click and select 'Show Package Contents'. You will be able to see list of files with .pbxproj extension. 3.Select project.pbxproj. Right click and open this file using 'Text Edit'. 4.You will be able to see <<<<<<, ============ and >>>>>>>>>>. These are generally conflicts that arise when you take update from Sourcetree/SVN/GITLAB. Delete these and save file. 5.Now, you'll be able to open project without any error message.

It sounds like you're going to have to create a new project in Xcode, go into the old directory, and drag all your source files, nibs, and resources into the Xcode files sidebar in the new project. It shouldn't take more than a few minutes, unless you really did a lot of work with custom build settings or targets. Either that, or revert to the last check-in in your source control and manually add any code files which changed between now and then.

And once you get things working again you should look into using something like subversion or mercurial for backup and revision control. Remember that he electrons don't always go where they are supposed to, backup early and often!

By reverting, you can undo pulled code.

If you want to undo that pull request just put this command on project path

--> git merge --abort

In case if you did not find in Text === or <<< or >>>> like was for me problem was really simple and fun... I change name of App in Xcode, but not change it in UnityProjectSettings before build - that was the problem...

If you ever merge and still get problems that dont know what they are, I mean not the obvious marks of a diff

<<<<<
....
======
>>>>>>

Then you can analise your project files with https://github.com/Karumi/Kin, install it and use it

kin project.pbxproj

It has make extrange erros that doesn't allow open the project more easy to understand and solve (ones of hashes, groups and so on).

And by the way, this could also be helpful, thought I have not used it try to diff 2 versions of your project files https://github.com/bloomberg/xcdiff so this will give you really what is going on.

In my experience, I needed a combination of tactics for this:

A-

1-Use git merge from the command line to figure out what files need to be resolved

2-Use git add or git rm as appropriate with those files

3-Use git commit to finish the merger

B- 1-for the .pbxproj I removed the <<<< , >>>> and the =====

2- used https://github.com/Serchinastico/Kin to find merging errors, and using SnoopyProtocol's answer I fixed those issues

Note: at one point the only error Kin was showing was: ERROR: line 1197:40 mismatched input '1' expecting NON_QUOTED_STRING which didn't need to be fixed for the Xcode project to be openable

subversion will corrupt my project file after a svn up on an almost weekly basis. I'm trying to figure out why it does this right now and came across this problem.