I&#39;m assuming you are having at least OSX 10.7, so go ahead into the applications folder (Click on Finder icon &gt; On the Sidebar, you&#39;ll find &quot;Applications&quot;, click on it ), delete the &quot;Xcode&quot; icon. That will remove Xcode from your system completely. Restart your mac.

Now go to [Xcode Releases page][1] or [Apple Developer More Downloads][2] and download **an older 
version of Xcode**, as needed and install. You need an Apple ID to login to that portal.

After install, you can also switch between multiple versions:

Xcode &gt; Preferences &gt; Locations &gt; Command Line Tools

[![Xcode switch versions][3]][3]


  [1]: https://xcodereleases.com
  [2]: https://developer.apple.com/download/more/
  [3]: https://i.stack.imgur.com/YLFrN.png

When you log in to your developer account, you can find a link at the bottom of the download section for Xcode that says [&quot;Looking for an older version of Xcode?&quot;][1].  In there you can find download links to older versions of Xcode and other developer tools


  [1]: https://developer.apple.com/downloads/index.action?name=Xcode

I am trying to select only today&#39;s records from a database table.

Currently I use

    SELECT * FROM `table` WHERE (`timestamp` &gt; DATE_SUB(now(), INTERVAL 1 DAY));

But this takes results for the last 24 hours, and I need it to only select results from today, ignoring the time. How can I select results based on the date only ?

How to select rows that have current day&#39;s timestamp?

I am developing a web application with a heavy front-end approach. By using Dojo and the AMD-way, I currently have testing screens which may easily load over a hundred different javascript files.

When I want to debug for any specific problem, or verify if I am seeing an old version of a specific file, I find it really hard to find my files in the Sources tab in the Chrome Developer Tools.

Is there any shortcut or action I can make that will let me type the name of a file and will take me to the source of that file?

How to go to a specific file in Chrome Developer Tools?

I have to use Xcode occasionally, and have now come across a problem where I&#39;ve upgraded to Xcode 4.6, but another piece of software I&#39;m using doesn&#39;t support it, so I need to go back to Xcode 4.5.

I&#39;m not used to the way Macs work in general, so if the answers provided could be written with that in mind, that&#39;d be helpful. :)


How to downgrade Xcode to previous version?

<p>I have to use Xcode occasionally, and have now come across a problem where I've upgraded to Xcode 4.6, but another piece of software I'm using doesn't support it, so I need to go back to Xcode 4.5.</p>
<p>I'm not used to the way Macs work in general, so if the answers provided could be written with that in mind, that'd be helpful. :)</p>


I was recently working on my application messing around in the info.plist section, and since that my application will not run on my test device:
&gt;file &#39;project.pch&#39; has been modified since the precompiled header was built
 
Something to note is that the app runs fine in the simulator.

---
Edit: Now I am getting this error instead of the other one:
&gt;No such file or directory (/Users/Me/Library/Developer/Xcode/DerivedData/MyProject-abcdefghijklmnopqrstuvwxyz/Build/Products/Debug-iphoneos/MyApp./MyApp)

![No such file or directory error][1]

How to regenerate the info.plist file?

  [1]: https://i.stack.imgur.com/8h09T.png

Fixing file &#39;project.pch&#39; has been modified since the precompiled header was built error in Xcode

I&#39;m not sure how to create a *pure* C++ project with Xcode 4.6:  
  
 ![image of trying to create a new project][1]  

  [1]: https://i.stack.imgur.com/Ktgn0.png

How do I create a new C++ project in Xcode?

I have a bunch of .ipa files and I&#39;ve used a script to resign them.

So how can check the provisioning profile/signing certificate to conform they are using the correct information?

Ideally, I&#39;d like to be able to take any .ipa file and tell which provisioning profile/signing certificate was used to sign it.

**Backstory:** Our enterprise distribution certificate is expiring and I want to re-sign our stuff. It&#39;s a simple take for all the stuff we&#39;ve made and archived in Xcode, but for 3rd party vendor made distributables I can&#39;t do that. I want to avoid asking for a re-signed .ipa file because a new .ipa *might* include unknown changes and introduce issues and they&#39;d probably charge us too... but I&#39;m more worried about the first issue.

Since both our old and new distribution certificates are still valid (you get a 6month overlap) I need to be able to confirm the new one is used otherwise I&#39;d look really silly when the old one expires and the &quot;resigning&quot; script didn&#39;t actually do the job.

How to tell what profile/signing certificate was used to sign .ipa?

Is it possible to track the allocation and deallocation of my Objective-C objects? For instance if I have a class Book, I want to track all the allocations and deallocations of the objects of Book type. I can track all the default SKD classes, such as UIViewController, UIWindow, UIView, NSDictionary and all that, but I want to track also the objects that are created from my defined classes.

Instruments Allocations track alloc and dealloc of objects of user defined classes

I&#39;m using CocoaPods with my Xcode 4 project and I have three targets for my project (the default, one for building a lite version and one for building a demo version). All the targets use the same libraries, but CocoaPods is only adding the static library and search paths to the primary target. My podfile looks like this:

    platform :ios, &#39;5.0&#39;
    
    pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    pod &#39;iCarousel&#39;, &#39;1.7.4&#39;


The only way I was get this to work was to specify each target individually with all the the pods listed again.

    platform :ios, &#39;5.0&#39;
    
    target :default do	
    	pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    	pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    	pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    	pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    	pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    	pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    	pod &#39;iCarousel&#39;, &#39;1.7.4&#39;
    end
    
    target :lite do	
    	link_with &#39;app-lite&#39;
    	
    	pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    	pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    	pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    	pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    	pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    	pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    	pod &#39;iCarousel&#39;, &#39;1.7.4&#39;
    end
    
    target :demo do	
    	link_with &#39;app-demo&#39;
    	
    	pod &#39;TestFlightSDK&#39;, &#39;&gt;= 1.1&#39;
    	pod &#39;MBProgressHUD&#39;, &#39;0.5&#39;
    	pod &#39;iRate&#39;, &#39;&gt;= 1.6.2&#39;
    	pod &#39;TimesSquare&#39;, &#39;1.0.1&#39;
    	pod &#39;AFNetworking&#39;, &#39;1.1.0&#39;
    	pod &#39;KKPasscodeLock&#39;, &#39;0.1.5&#39;
    	pod &#39;iCarousel&#39;, &#39;1.7.4&#39;
    end

Is there a better way to do this?

How do I specify multiple targets in my podfile for my Xcode project?

I would like to remove and/or deactivate the `Emmet` package in Sublime Text 2.

Should I just remove the `Emmet` directory or what is the typical workflow for removal of a package?

How to remove a package in sublime text 2

I have installed some packages with -e

    &gt; pip install -e git+https://github.com/eventray/horus.git@2ce62c802ef5237be1c6b1a91dbf115ec284a619#egg=horus-dev

I with pip freeze I see

    &gt; pip freeze
    ...
    -e git+https://github.com/eventray/horus.git@2ce62c802ef5237be1c6b1a91dbf115ec284a619#egg=horus-dev
    ...

when I try to uninstall the packages I get errors:

    &gt; pip uninstall horus-dev
    Cannot uninstall requirement horus-dev, not installed

    &gt; pip uninstall horus
    Cannot uninstall requirement horus, not installed


How do I uninstall such a package?


 

How to uninstall editable packages with pip (installed with -e)

I recently downloaded Android Studio on my Macbook Pro and I messed up with it every time I open it. It gives me plugin errors and several other errors. I need to uninstall it completely from my mac. I tried to delete it from my mac and then install it again as if you would do the first time, but it did nothing and now the same problems occur.

**How can I manage to remove it completely and install a fresh one again?**

How to completely uninstall Android Studio on Mac?

All we know that usual (in practice any) antivirus application before uninstall used to fire simple dialog like: &quot;You&#39;re going to uninstall app, are you sure?&quot; - &quot;yes/no&quot;.

Yes, I know that I can intercept package delete intent using intent-filter like:

    &lt;activity
        android:name=&quot;.UninstallIntentActivity&quot;
        android:label=&quot;@string/app_name&quot; &gt;
        &lt;intent-filter&gt;
            &lt;action android:name=&quot;android.intent.action.VIEW&quot; /&gt;
            &lt;action android:name=&quot;android.intent.action.DELETE&quot; /&gt;
            &lt;category android:name=&quot;android.intent.category.DEFAULT&quot; /&gt;
            &lt;data android:scheme=&quot;package&quot;  /&gt;
        &lt;/intent-filter&gt;
    &lt;/activity&gt;

But problem is in simple fact that this intercepts **any** delete requests and moreover this will fire chooser dialog between my app and stock installer. So if user will select stock installer - I won&#39;t be able to do anything.

My goal is not to prevent user from uninstalling of my app, but just rollback changes made by my app.

Learning from those antivirus apps I see that this kind of operation is possible, so please help me and explain how it is possible?

**Update**

Since there are some guys who doesn&#39;t believe that it&#39;s real - I would refer to [Avast Mobile Security](http://www.avast.com/free-mobile-security#tab2):

&gt; Anti-Theft protects itself from uninstall by disguising its components
&gt; with various self-preservation techniques.

Another example: Kaspersky Internet Security for Android - [here&#39;s special procedure for uninstalling it](http://support.kaspersky.com/8779), which requires entering of secret code. 

Anyway it means that there&#39;s way to intercept uninstallation procedure in order to either prevent uninstall or do some finalizing job.

How can an app detect that it&#39;s going to be uninstalled?



If I have a package.json file defined in my application root and run `npm install -g` it will install all the dependencies defined in package.json, globablly.

However, this doesn&#39;t seem to work in reverse.

If I do `npm uninstall -g` in my application root it throws an error, expceting me to pass it a package name.

Shouldn&#39;t this also uninstall the same packages I installed?

Am I doing something wrong?

How do you uninstall all dependencies listed in package.json (NPM)?

Is it possible to downgrade a user at period end instead of immediately?  I&#39;ve combed through the [API Docs][1] but haven&#39;t been able to figure out how to accomplish this.

As a workaround I&#39;m currently immediately canceling the user&#39;s subscription, then subscribing them to the lesser subscription, trialing until the end of the month.  This won&#39;t work though - I need to be able to delay the downgrade until the period end (but &quot;record&quot; it w/ Stripe at the time the downgrade is requested).

Clearly there are ways to accomplish this with webhook callbacks and by tracking user subscriptions locally but I&#39;d like to avoid that if possible.


----------
**EDIT**

Before anyone asks - I&#39;m using Temboo&#39;s PHP SDK.  However I&#39;m not looking for a language-specific approach, just a high level how-to (if it&#39;s possible). 

  [1]: https://stripe.com/docs/api/php#update_subscription

Stripe: downgrade a user at &quot;period end&quot;

I tried updating npm to see if it would solve some dependency problems we were having, and now I want to downgrade to the version the rest of the development team is using. How can I install an older version?

I updated npm according to the instructions on the [installation page][1]:

&gt;## Updating npm ##
&gt;
&gt;Node comes with npm installed so you should have a version of npm. However, npm gets updated more frequently than Node does, so you&#39;ll want to make sure it&#39;s the latest version.
&gt;
&gt;`npm install npm@latest -g`


  [1]: https://docs.npmjs.com/getting-started/installing-node#updating-npm

Downgrade npm to an older version

My mac has postgresql 10.1 on it, and I need 9.6 for my work website to function on my local machine.  Can&#39;t find easy instructions on how to uninstall or downgrade to 9.6. Any help would be appreciated! 

How to use homebrew to downgrade postgresql from 10.1 to 9.6 on Mac OS

I am experiencing a problem with debugging in vscode just after the last update. There&#39;s something going on ([https://github.com/Microsoft/vscode/issues/45657][1])

I&#39;d like to check the previous version to see if my case is a problem here or in vscode but I can not find instructions on how to downgrade (I suppose it&#39;s possible)


  [1]: https://github.com/Microsoft/vscode/issues/45657

Content Type	Original Author	Original Content on Stackoverflow
Question	MadSkunk	View Question on Stackoverflow
Solution 1 - Xcode	Ravi	View Answer on Stackoverflow
Solution 2 - Xcode	Dan F	View Answer on Stackoverflow

How to downgrade Xcode to previous version?

Xcode Problem Overview

Xcode Solutions

Solution 1 - Xcode

Solution 2 - Xcode

How to go to a specific file in Chrome Developer Tools?

How to select rows that have current day's timestamp?

Attributions