Couldn't load a xcode project because it is already opened from another project or workspace

Asked 25/7, 2011 at 18:14 Answered 13/11, 2019 at 15:29

I have a project that has one target dependency. The target dependency is dependent on a framework called Three20.

The dependency tree looks like this.

myProject
   -> myCustomFramework
         -> Three20

When I tried to build and run I get the following error message.

Workspace Integrity Couldn't load Three20.xcodeproj because it is already opened from another projet or workspace.

I have only one project open. Any suggestions on why I am getting this message?

Antipathetic answered 25/7, 2011 at 18:14 Comment(5)

close all projects and finderwindows then open ur project from finder – Hickox 25/7, 2011 at 18:20

I've tried that. I also restarted my machine. Didn't work. – Antipathetic 25/7, 2011 at 18:22

I'm also having this issue with Three20. It compiles, just throws these errors. – Nonrigid 8/8, 2011 at 1:13

I tried restarting Xcode again and it appears to have worked. I'm not too sure why it didn't work the first time around. – Antipathetic 8/8, 2011 at 15:40

Okay had the same exact issue with the same exact library, and force quitting xcode and reopening fixed it first shot. – Materialize 29/9, 2012 at 21:13

135

Quitting the xcode completely and opening it up again worked.

Lasseter answered 31/8, 2011 at 19:8 Comment(1)

My issue was that I tried open workspace without closing main project. How I fix it, I close all from Xcode (Xcode-Quit) and than open only workspace. If you try open workspace and you project together you will faced with error – Stalder 21/12, 2016 at 10:3

Quitting Xcode alone didn't work for me. What I did was:

File->Close Workspace/Project on every open workspace.
Xcode->Quit
Open Xcode again and open troublesome workspace

Peonir answered 1/5, 2013 at 9:51 Comment(1)

This happens when you open first a project withing the Workspace. And then try to open the workspace. I did not know I had to open the workspace but this solved the problem. – Resistless 2/7, 2017 at 8:57

I have close the Xcode completely but IT didn't work. I have killed the procces and It did finally!!! :-)

Churchman answered 16/11, 2011 at 10:11 Comment(1)

You probably close the Xcode window and no Xcode complitly. use Xcode -> Quit Xcode – Demp 9/10, 2012 at 15:2

Had the same problem in a case where I got a workspace working, closed it, copied the containing folder to a USB drive, then reopened. I got that message for one of the projects in the workspace. Closed, tried again, removed/re-added project - no luck. Closed, tried to open the project alone and got the message about it being open in another workspace - not true. Quit XCode, restarted by double-clicking my workspace in Finder, and all went well after.

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