You can find out what version is xcodebuild using with `xcode-select -print-path`. Also, change to a different version using `xcode-select -switch &lt;path&gt;`

Also, to determine which XCode environment is being used, use the command `xcodebuild -version`.

Outside the terminal, you can view and change this in Xcode.

Open **Preferences**, then select the **Locations** tab. Near the bottom, an entry titled **Command Line Tools** labels a dropdown, whose selection corresponds to the version of Xcode used in `xcodebuild`.

You may open this dropdown to select another version of Xcode that you have installed in your `/Applications` or `~/Applications` folder.

[![Screenshot illustrating the above-described solution.][Xcode-13]][Xcode-13]

---

Interestingly, this panel only says what this pop-up menu does and that it&#39;s analogous to `xcode-select` if you&#39;ve selected a different version of Xcode than the one it&#39;s running in.

In case you need it, I also have [a screenshot from what this used to look like in Xcode 8][Xcode-8].


  [Xcode-8]: https://i.stack.imgur.com/XEWpE.png
  [Xcode-13]: https://i.stack.imgur.com/mEO2i.png


I understand what `print` does, but of what &quot;type&quot; is that language element? I think it&#39;s a function, but why does this fail?

    &gt;&gt;&gt; print print
    SyntaxError: invalid syntax

Isn&#39;t `print` a function? Shouldn&#39;t it print something like this?

    &gt;&gt;&gt; print print
    &lt;function print at ...&gt;

What is &#39;print&#39; in Python?

Currently, most of the popular websites, like google, yahoo detect if the user connection speed is slow and then give a option to load basic version of the website instead of the high end one.

What are the methods available to detect slow internet connections?

&lt;sub&gt;P.S. I think this is achieved through javascript, so I will tag it as a javascript question? However, I am looking for answers oriented more towards PHP, if this is also server related.&lt;/sub&gt;

How to detect slow internet connections?

I have installed both Xcode 3.2 and Xcode 4.0.2 on the same machine, which uses Hudson for automated CI (continuous integration) builds. When I say that both were installed, what I mean by that is that I can use both Xcode 3 and Xcode 4 simultaneously or interchangeably. They both exist on the machine, as I did a custom install for Xcode 4 without overwriting Xcode 3 (supposedly).

 - Do command line calls to &#39;xcodebuild&#39; invoke Xcode 3 or Xcode 4?
   - Does that question even make sense? Someone who may or may not be knowledgable on the topic is requesting that some projects be built with 3 and some with 4.
 - If so, how do I force it to use 3 or 4?
  - alternatively, is there a separate location where Xcode 3&#39;s &#39;xcodebuild&#39; is stored vs. where Xcode4&#39;s &#39;xcodebuild&#39; is stored? If there is, I can just use a different path in my build script.

Which version of Xcode does xcodebuild use?

<p>I have installed both Xcode 3.2 and Xcode 4.0.2 on the same machine, which uses Hudson for automated CI (continuous integration) builds. When I say that both were installed, what I mean by that is that I can use both Xcode 3 and Xcode 4 simultaneously or interchangeably. They both exist on the machine, as I did a custom install for Xcode 4 without overwriting Xcode 3 (supposedly).</p>
<ul>
<li>Do command line calls to 'xcodebuild' invoke Xcode 3 or Xcode 4?
<ul>
<li>Does that question even make sense? Someone who may or may not be knowledgable on the topic is requesting that some projects be built with 3 and some with 4.</li>
</ul>
</li>
<li>If so, how do I force it to use 3 or 4?</li>
<li>alternatively, is there a separate location where Xcode 3's 'xcodebuild' is stored vs. where Xcode4's 'xcodebuild' is stored? If there is, I can just use a different path in my build script.</li>
</ul>


I would like to view an array of elements pointed to by a pointer. In GDB this can be done by treating the pointed memory as an artificial array of a given length using the operator &#39;@&#39; as

    *pointer @ length
where `length` is the number of elements I want to view.

The above syntax does not work in LLDB supplied with Xcode 4.1.

Is there any way how to accomplish the above in LLDB?

View array in LLDB: equivalent of GDB&#39;s &#39;@&#39; operator in Xcode 4.1

I have an application that I am  debugging on iPad.
 2 days ago I wanted to debug a same updated application but I am  having this error.

&gt; The identity used to sign the executable is no longer valid.
&gt; 
&gt; Please verify that your device’s clock is properly set, and that your
&gt; signing certificate is not expired.
&gt; 
&gt; (0xE8008018).


I don&#39;t have iPhone Developer certificate yet, but I have debugged this game once.

The identity used to sign the executable is no longer valid

I have noticed that when performing native debugging on `Xcode 4` if I have my app installed, then delete the app, then attempt to debug again from `Xcode 4`, the time it takes to perform the step &quot;**Transferring package**&quot; is pathologically slow.  Has anyone else experienced this?  I dread deleting the app as it will take 20-30 minutes to load the app.

Our app has lots of user files that get deleted when app is deleted.  Perhaps some sort of sync-like process is running at same time.  Killing `Xcode 4` does not fix the issue.


Xcode 4 &quot;Transferring package&quot; pathologically slow after deleting app

If I open Instruments and select a standard application (e.g. Mail or MS Word) it has no issue. 
If I am in Xcode and I go to **Product &gt; Profile** (or press &lt;kbd&gt;Cmd&lt;/kbd&gt; + &lt;kbd&gt;I&lt;/kbd&gt;), it launches Instruments, allows me to select a template, and loads the standard screen. Then the downward arrow starts tracing to the right as it should, and the iOS simulator launches the program. However, nothing is plotted in Instruments. It shows no changes to anything no matter what the app is doing. I can&#39;t click anything in Instruments: no menu&#39;s, can&#39;t stop recording, can&#39;t open tabs, etc. 

I randomly discovered that if I hit &lt;kbd&gt;Cmd&lt;/kbd&gt; + &lt;kbd&gt;Tab&lt;/kbd&gt;, Instruments will start behaving normally. This seems really strange to me. Either it&#39;s a bug or it&#39;s a hole in my knowledge about how to operate Instruments. 


Instruments 4.1 unresponsive to projects launched from Xcode 4.1 until pressing Cmd-Tab

I&#39;d like to remove old (replaceable?) data and *DerivedData* contents seem a likely candidate. Since it&#39;s name *DerivedData*, I assume that it&#39;s info that, if missing, would be generated during a build phase and if present, is used during that same phase. It seems logical then that I could delete any old project data without fear and if I should ever build that old project, the first time through would take longer than normal sine it has to recreate all this derived data.

Am I mistaken here?

How can I safely delete in my ~/Library/Developer/Xcode/DerivedData directory?

I was wondering how one could change Jenkins&#39; default port 8080. Using linux or windows, this is simply done with the configuration file. But the Mac config file of Jenkins looks completely different from the other ones.

Of course one could pass the --httpPort parameter when starting the server, but I want to do this within a config file.

Is there an option for that?

PS: Passing the Jenkins instance through apache would kinda solve the problem, but I want to change the Jenkins port.

Thanks!

Change Jenkins port on macOS

I have a report file I&#39;m generating, and I would like to be able to add the current build number to that file within a Jenkins job. Is there an environment variable or plugin I can use to get at the current build number?

Jenkins/Hudson - accessing the current build number?

I&#39;m looking to set up a TeamCity server for continuously building a .NET web application. I already have hosting, so I don&#39;t want to get a whole new hosting account such as AppHarbor.

I don&#39;t maintain my own physical server, nor do I want to.

I also don&#39;t want to have to pay $50 or more per month for an entire dedicated Windows machine, just to host TeamCity.

I really don&#39;t care if it&#39;s slow and on a shared machine, as it&#39;s just continuous build which will be running in the background.

I&#39;ll want to have the outputs automatically deployed to a server of my choice through FTP.

Is there anyone on the market providing hosted TeamCity environments? 

Anyone know of a hosted TeamCity build provider?

I have a **dll-type project** that contains MSTest integration tests. On my machine the tests pass, and I want the same to happen on a CI server (I use TeamCity). But the tests fail, because I need to tweak some settings in app.config. This is why I was thinking to have a separate second app.config file that will hold the settings for CI server.

So I would like to have
&lt;pre&gt;
/Sln
 /Proj
  app.config (I think this is required by VS)
  app.Release.config (This is a standalone independent config file)
&lt;/pre&gt;

Thus if I select Release configuration in build config on CI, I would like to use app.Release.config file instead of app.config

**Problem**&lt;br/&gt;
This doesn&#39;t seem to be straightforward for simple .dll type projects. For web projects, I can do web config transformations. I found a hack how to do these transformations for a dll type project, but I am not a big fan of hacks.

**Question** &lt;br/&gt;
What is a standard approach to tweak app.config files depending on build config for .NET projects (such as Debug, Release, ...)?

How to select different app.config for several build configurations

We have a need to be able to skip a submodule in certain environments.

The module in question contains integration tests and takes half an hour to run.  So we want to include it when building on the CI server, but when developers build locally (and tests get run), we want to skip that module.

Is there a way to do this with a profile setting?  I&#39;ve done some googling and looked at the other questions/answers here and haven&#39;t found a good solution.

I suppose one option is to remove that submodule from the parent `pom.xml` entirely, and just add another project on our CI server to just build that module.

Suggestions?

Skip a submodule during a Maven build

I&#39;m trying to use **Jenkins (Global) environment variables** in my xcopy script. 

    ${WORKSPACE} doesn&#39;t work
    &quot;${WORKSPACE}&quot; doesn&#39;t work
    &#39;${WORKSPACE}&#39; doesn&#39;t work



How are environment variables used in Jenkins with Windows Batch Command?

I&#39;m looking to run automated NUnit tests for a C# application, nightly and on each commit to svn.

Is this something that Jenkins-CI can do?&lt;br/&gt;
Is there an online tutorial or how-to document which documents a similar setup that I can look at?

How do you run NUnit tests from Jenkins?

I&#39;m running Ubuntu 11.10 and have run `sudo apt-get install jenkins` to install Jenkins on this system.

I&#39;ve seen some tutorials on how to setup a reverse proxy (Apache, Nginx, etc), however this is a VM dedicated for just jenkins and I&#39;d like keep it as lean as possible while having jenkins running on port 80.

I&#39;ve found the upstart config in `/etc/init/jenkins.conf` and modified the port to 80 `env HTTP_PORT=80`

When I start jenkins via `service jenkins start`, `ps` reveals that it runs for a few seconds then terminates.

Is this because jenkins is running as the `jenkins` user on a privileged port? If so, how do I fix this? Any other ideas a welcome.

Here is the upstart config:

    description &quot;jenkins: Jenkins Continuous Integration Server&quot;
    author &quot;James Page &lt;james.page@ubuntu.com&gt;&quot;
    
    start on (local-filesystems and net-device-up IFACE!=lo)
    stop on runlevel [!2345]
    
    env USER=&quot;jenkins&quot;
    env GROUP=&quot;jenkins&quot;
    env JENKINS_LOG=&quot;/var/log/jenkins&quot;
    env JENKINS_ROOT=&quot;/usr/share/jenkins&quot;
    env JENKINS_HOME=&quot;/var/lib/jenkins&quot;
    env JENKINS_RUN=&quot;/var/run/jenkins&quot;
    env HTTP_PORT=80
    env AJP_PORT=-1
    env JAVA_OPTS=&quot;&quot;
    env JAVA_HOME=&quot;/usr/lib/jvm/default-java&quot;
    
    limit nofile 8192 8192
    
    pre-start script
        test -f $JENKINS_ROOT/jenkins.war || { stop ; exit 0; }
        $JENKINS_ROOT/bin/maintain-plugins.sh 	
        mkdir $JENKINS_RUN &gt; /dev/null 2&gt;&amp;1  || true
        chown -R $USER:$GROUP $JENKINS_RUN || true
    end script
    
    script
        JENKINS_ARGS=&quot;--webroot=$JENKINS_RUN/war --httpPort=$HTTP_PORT --ajp13Port=$AJP_PORT&quot;
        exec daemon --name=jenkins --inherit --output=$JENKINS_LOG/jenkins.log --user=$USER \
            -- $JAVA_HOME/bin/java $JAVA_OPTS -jar $JENKINS_ROOT/jenkins.war $JENKINS_ARGS \
            --preferredClassLoader=java.net.URLClassLoader
    end script



How to configure Jenkins to run on port 80

I have two jobs in jenkins, both of which need the same parameter. 

How can I run the first job with a parameter so that when it triggers the second job, the same parameter is used?




Jenkins - passing variables between jobs?

I just upgraded XCode to 4.3.1.
I&#39;m using a script to build (and then deploy through Testflight) my app.
But I now receive this error:

&gt; Error: No developer directory found at /Developer. Run /usr/bin/xcode-select to update the developer directory path.

I&#39;ve no /Developer dir in my machine: how can I fix it?

How can I resolve &quot;Error: No developer directory found at /Developer&quot;?

I&#39;m trying to automate the process of building apps for our clients using bash scripts running on a Mac Mini Server (OSX 10.7). 

My script is based on the spectacularly useful script from github originally posted at https://gist.github.com/949831

I&#39;m building the app using xcodebuild, and then signing and embedding the mobileprovision file using xcrun.

When I do all this with a mobileprovision file I manually installed into Xcode using the GUI (e.g. double-clicking) it works fine. If I simply try to use a mobileprovision file copied onto the server with SCP it fails (Code Sign error: Provisioning profile &#39;123abc123&#39; can&#39;t be found.) 

Presumably this is because the file isn&#39;t &#39;installed&#39;.

Is there any way to install the mobileprovision file from the terminal? I&#39;m using SSH so using things such as the &#39;open&#39; command won&#39;t work.

Thanks!


Can an Xcode .mobileprovision file be &#39;installed&#39; from the command line?

I am doing command line xcodebuild using a shell script.  My problem is if I open and close the `xx.xcodeproj` file once and then use that command it works well.

Somehow if I get deep into the file changes, this `project.xcworkspace` is the only file that has changed.  Is this file valid and should I check it into version control?
Will this cause any issues?

I&#39;ve heard that it&#39;s as important as `.pbxproj`: is this true?

I couldn&#39;t find any valid documentation which talks about the roles and responsibilities of various files in the xcode project files.  Please provide links which help me to understand that.

Is the project.xcworkspace file important?

![enter image description here][1]


  [1]: http://i.stack.imgur.com/hFbKg.jpg



my Xcode is  Version 4.4.1  

The project worked perfect before updating to this newer version, but now it stopped working



Choose a destination with a supported architecture in order to run on this device

Running in Xcode is correctly, but when I want to use command line with 
   $ /usr/bin/xcodebuild -scheme projectA -workspace projectA.xcworkspace -configuration Debug clean build 

And come up with the following.

    === BUILD NATIVE TARGET projectA OF PROJECT projectA WITH CONFIGURATION Debug ===
    Check dependencies
    No architectures to compile for (ONLY_ACTIVE_ARCH=YES, active arch=x86_64, VALID_ARCHS=armv7 armv7s).

In Build Settings are:

 - Architectures: Starndard (armv7, armv7s)
 - Base SDK: Latest iOS (iOS 6.0)
 - Build Active Architecture Only: Debug Yes, Release No
 - Valid Architectures: armv7 armv7s

After I change `Build Active Architecture Only = No`, then the build was BUILD SUCCEEDED.

What is the suggestion setting for this situation, to build success under commend line mode? Thanks.

Content Type	Original Author	Original Content on Stackoverflow
Question	kraftydevil	View Question on Stackoverflow
Solution 1 - Xcode4	adig	View Answer on Stackoverflow
Solution 2 - Xcode4	ThomasW	View Answer on Stackoverflow
Solution 3 - Xcode4	Ky.	View Answer on Stackoverflow

Which version of Xcode does xcodebuild use?

Xcode4 Problem Overview

Xcode4 Solutions

Solution 1 - Xcode4

Solution 2 - Xcode4

Solution 3 - Xcode4

How to detect slow internet connections?

What is 'print' in Python?

Attributions