 1. Run the following command in terminal:

    ```pod trunk register yourEmail@example.com &#39;Your Name&#39;```

 2. Click the link in the email that is sent to you.

 3. Run your ```pod trunk push``` command in terminal again


This failed me just now, looks like there is an additional requirement to perform the registration as [outlined here][1].

 1. From terminal run: `pod trunk register myemail@domain.com &#39;MyName&#39;`
 2. Click on the link for the email sent to your address
 3. Run `pod trunk push` again

To highlight, the difference from Justin&#39;s answer was to include the **name value**. It would not allow me to register without it.

  [1]: https://guides.cocoapods.org/making/getting-setup-with-trunk.html

Im trying to follow the following https://stackoverflow.com/questions/28585821/none-of-the-valid-provisioning-profiles-include-the-devices as I&#39;m trying to run an application on my iPhone 5 and getting the error &quot;No matching provisioning profiles found&quot;. which is odd as it runs on my iPhone 6 fine...

when i log into developer.apple.com and click on &#39;Certificates, IDs &amp; Profiles&#39;  it takes me to &#39;https://developer.apple.com/account/#/welcome&#39; where it doesn&#39;t give me any option to add a device as all i can see is: 

[![enter image description here][1]][1]


Is there another way of fixing the error?

Any help would be appreciated.


  [1]: http://i.stack.imgur.com/8AQkM.png

Can&#39;t Access Certificates, Identifiers &amp; profiles within developer.apple.com

I would like to use the insert.. on confict do update.. syntax with a table that has unique constraints on two columns. Is this possible?

e.g. mytable has separate unique constraints on col1 and col2.

I can write:

    INSERT INTO mytable(col1, col2, col3) values (&#39;A&#39;, &#39;B&#39;, 0) ON CONFLICT DO NOTHING;

However this doesn&#39;t work:

    INSERT INTO mytable(col1, col2, col3) VALUES (&#39;A&#39;, &#39;B&#39;, 0) 
    ON CONFLICT 
    DO UPDATE SET col3 = EXCLUDED.col3 + 1;

ERROR: ON CONFLICT DO UPDATE requires inference specification or constraint name

This also doesn&#39;t work:

    INSERT INTO mytable(col1, col2, col3) VALUES (&#39;A&#39;, &#39;B&#39;, 0)
    ON CONFLICT (col1, col2) 
    DO UPDATE SET col3 = EXCLUDED.col3 + 1;

ERROR: there is no unique or exclusion constraint matching the ON CONFLICT specification

This syntax seems to be designed for a single composite unique constraint over two columns, rather than two constraints.

Is there any way to do a conditional update if either unique constraint is violated? This question https://stackoverflow.com/questions/35031934/how-to-upsert-in-postgres-on-conflict-on-one-of-2-columns alludes to it but doesn&#39;t provide the syntax.

Postgres conflict handling with multiple unique constraints

When trying to push an update to my cocoapod framework to the repo with ```pod trunk push``` as mentioned in the title, I get the following error:

&gt; [!] Authentication token is invalid or unverified. Either verify it with the email that was sent or register a new session.

I&#39;ve updated the cocoapod before, how do I verify my email or session?

Edit: Sometimes I also get the error: `[!] You need to register a session first.`

Error when trying to run `pod trunk push [cocoapod].podspec`

When trying to push an update to my cocoapod framework to the repo with <code>pod trunk push</code> as mentioned in the title, I get the following error:
> [!] Authentication token is invalid or unverified. Either verify it with the email that was sent or register a new session.
I've updated the cocoapod before, how do I verify my email or session?
Edit: Sometimes I also get the error: <code>[!] You need to register a session first.</code>

I had a `MyViewController.swift` and a `MyViewController.xib` presenting the layout of MyViewController.

I tried different methods to load this view controller including:

 

    //1
    let myVC = UINib(nibName: &quot;MyViewController&quot;, bundle:
           nil).instantiateWithOwner(nil, options: nil)[0] as? MyViewController

    //2
    let myVC = NSBundle.mainBundle().loadNibNamed(&quot;MyViewController&quot;, owner: self, options: nil)[0] as? MyViewController

    //3
    let myVC = MyViewController(nibName: &quot;MyViewController&quot;, bundle: nil)

The third one is the only successful initialisation, but the previous two are causing error:

&gt; Terminating app due to uncaught exception &#39;NSUnknownKeyException&#39;,
&gt; 
&gt; reason: &#39;[&lt;MyApp.XXX 0x7fe8f151b4c0&gt; setValue:forUndefinedKey:]: this
&gt; class is not key value coding-compliant for the key XXX.

What&#39;s wrong with those loading methods?

Loading ViewController from xib file

I have some HTML data, which contains headings, paragraphs , images and lists tags.

Is there a way to display this data in one `UITextView` or `UILabel`?


Swift: Display HTML data in a label or textView

After looking at CocoaPods&#39; own example (from https://guides.cocoapods.org/syntax/podfile.html#abstract_target)

    # Note: There are no targets called &quot;Shows&quot; in any of this workspace&#39;s Xcode projects
    abstract_target &#39;Shows&#39; do
      pod &#39;ShowsKit&#39;
    
      # The target ShowsiOS has its own copy of ShowsKit (inherited) + ShowWebAuth (added here)
      target &#39;ShowsiOS&#39; do
        pod &#39;ShowWebAuth&#39;
      end
    
      # The target ShowsTV has its own copy of ShowsKit (inherited) + ShowTVAuth (added here)
      target &#39;ShowsTV&#39; do
        pod &#39;ShowTVAuth&#39;
      end
    
      # Our tests target has its own copy of
      # our testing frameworks, and has access
      # to ShowsKit as well because it is
      # a child of the abstract target &#39;Shows&#39;
    
      target &#39;ShowsTests&#39; do
        inherit! :search_paths
        pod &#39;Specta&#39;
        pod &#39;Expecta&#39;
      end
    end

I don&#39;t see why `inherit! :search_paths` is necessary? All 3 targets, `ShowsiOS`, `ShowsTV` and `ShowsTests` have access to `ShowsKit` from their parent target.

The specific example for `inherit!` (from https://guides.cocoapods.org/syntax/podfile.html#inherit_bang) doesn&#39;t add any clarity

    target &#39;App&#39; do
      target &#39;AppTests&#39; do
        inherit! :search_paths
      end
    end

Can you help me understand what `inherit! :search_paths` is for?

What does inherit! :search_paths do?

Is any way to print full date with milliseconds?

For example, I&#39;m doing this:

    print(&quot;\(NSDate())&quot;)

But I&#39;m just get this:

    2016-05-09 22:07:19 +0000

How can I get the milliseconds too in the full date?

Swift full date with milliseconds

I use CocoaPods to manage dependencies in my project. I&#39;ve written Podfile: 

    target &#39;MyApp&#39; do
      platform :ios, &#39;8.0&#39;
      # Uncomment this line if you&#39;re using Swift or would like to use dynamic frameworks
      #use_frameworks!
    
      # Pods for MyApp
      pod &#39;KeepLayout&#39;, :git =&gt; &#39;https://github.com/iMartinKiss/KeepLayout&#39;, :tag =&gt; &#39;v1.6.0&#39;
      pod &#39;EasyMapping&#39;
    
      target &#39;MyAppTests&#39; do
        inherit! :search_paths
        # Pods for testing
      end
    
      target &#39;MyAppUITests&#39; do
        inherit! :search_paths
        # Pods for testing
      end
    
    end

This file works well with CocoaPods 0.x but I can&#39;t compile project after I&#39;ve updated to CocoaPods 1.0. After I&#39;ve run 

    pod update 

I can&#39;t compile my project with error:

&gt; /Users/&lt;...&gt;/Pods/KeepLayout/Sources/KeepAttribute.m:195:1: Cannot synthesize weak property because the current deployment target does not support weak references

I&#39;ve seen that every library is builded with different deployment target. For example KeepLayout is builded with 4.3 deployment target.

How I can determine build target for every pod dependency? 

Set deployment target for CocoaPods&#39;s pod

I want to open location service screen programmatically to turn on service.

[![enter image description here][1]][1] 


  [1]: http://i.stack.imgur.com/OP7MC.png

How to open Location services screen from setting screen?

I downloaded Xcode beta and opened my existing project to see how it works with Xcode 8 beta (I opened Storyboard file from Xcode 8). 

Now when I open my project from Xcode 7.3 I am not able to open storyboard file , it gives me following error

&gt; This version does not support documents saved in the Xcode 8 format.
&gt; Open this document with Xcode 8.0 or later.


[![Xcode 7 error][1]][1]
What should I do to revert back, as I want to continue working on Xcode 7.

In Xcode 8 I was prompted to select device and I selected iPhone 6S, I think that part is somehow responsible for storyboard file not opening in Xcode 7

  [1]: http://i.stack.imgur.com/f2RSi.png

The document Main.storyboard requires Xcode 8.0 or later

I am following an online tutorial from team tree house and one of the steps is to create an NSManagedObject subclass for my data model. 

When I did that the code automatically generated a class and set of macros at the beginning and and the end:

**NS_ASSUME_NONNULL_BEGIN**

**NS_ASSUME_NONNULL_END**

I was searching online but I could not find any documentation about what these guys are doing here. By the way they were defined in the header **NSObjCRuntime.h**

Any ideas what purpose they serve?


NS_ASSUME_NONNULL_BEGIN Macro

I am using XCode 8 and testing with iOS 10.2 Beta.

I have added the Photos, PhotosUI and MobileCoreServices frameworks to project. 

Very simple code:

    #import &lt;Photos/Photos.h&gt;
    #import &lt;PhotosUI/PhotosUI.h&gt;
    #import &lt;MobileCoreServices/MobileCoreServices.h&gt;
    
    @interface ViewController : UIViewController &lt;UIImagePickerControllerDelegate, UINavigationControllerDelegate, PHLivePhotoViewDelegate&gt;
    
    @property (strong, nonatomic) IBOutlet UIImageView *imageview;
    
    @end

and implementation:


    - (IBAction)grab:(UIButton *)sender{
        UIImagePickerController *picker = [[UIImagePickerController alloc]init];
        picker.sourceType = UIImagePickerControllerSourceTypePhotoLibrary;
        picker.allowsEditing = NO;
        picker.delegate = self;
        
        // make sure we include Live Photos (otherwise we&#39;ll only get UIImages)
        NSArray *mediaTypes = @[(NSString *)kUTTypeImage, (NSString *)kUTTypeLivePhoto];
        picker.mediaTypes = mediaTypes;
        
        // bring up the picker
        [self presentViewController:picker animated:YES completion:nil];
    }

As soon as I tap the button, the app crashes with very useless error:

`[access] &lt;private&gt;`

That&#39;s it. Nothing else.

Using break statements, the app seems to crash at &quot;presentViewController&quot;.

This is a brand new app and I don&#39;t have anything else in the UI other than the grab button.

Also, testing on iOS 9.3, this works fine. Am I missing something which might be changed in iOS 10?


iOS 10 error [access] &lt;private&gt; when using UIImagePickerController

I was trying to convert syntax of old Swift project to new one as per few suggestion on Stack Overflow I tried converting it through **Edit &gt; Convert &gt; To latest Syntax** that did not work properly instead I started getting new errors shown as below 
 &gt; Command/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/swiftc
failed with exit code 1

And 
&gt; Command /usr/bin/ditto failed with exit code 1

[![enter image description here][1]][1]

I tried https://stackoverflow.com/questions/26156561/xcode-6-0-1-command-applications-xcode-app-contents-developer-toolchains-xcoded, but it&#39;s a different situation.

  [1]: https://i.stack.imgur.com/1x7SP.png


ERROR &quot;swiftc failed with exit code 1&quot; when converting to latest syntax

I want to pick a file of any type(.pdf, .docs, .xlsx, .jpeg, .txt, .rtf, etc) functionality in my iOS app. On clicking on **Upload** button, I want my app to open a directory and select files(`DocumentsPicker`)

    @IBAction pickDocument(sender: UIButton) {
        //Open Document Picker
    }

Any approach to do so in `Swift`?

Implement Document Picker in swift (iOS)

When I set `firstThing` to default `nil` this will work, without the default value of `nil` I get a error that there is a missing parameter when calling the function.

By typing `Int?` I thought it made it optional with a default value of `nil`, am I right? And if so, why doesn&#39;t it work without the `= nil`?

    func test(firstThing: Int? = nil) {
        if firstThing != nil {
            print(firstThing!)
        }
        print(&quot;done&quot;)
    }
    test()

Default optional parameter in Swift function

I have some protocols

**LoginStrategy**

    public protocol LoginStrategy {
        func login(_ viewController: UIViewController)
        func getUserInfo(withCompletionHandler completionHandler: @escaping (_ userInfo: [String: Any]?) -&gt; ())
        func createLoginButton(_ frame: CGRect, withCompletionHandler completionHandler: @escaping (_ loginButton: UIView) -&gt; ())
        func getUserId() -&gt; String
    }

and two classes:

**LoginProvider**

    public class LoginProvider {
        
        public let strategy: LoginStrategy
        
        public func login(_ viewController: UIViewController) {
            return self.strategy.login(viewController)
        }
        
        public func getUserInfo(withCompletionHandler completionHandler: @escaping (_ userInfo: [String: Any]?) -&gt; ()) {
            return self.strategy.getUserInfo(withCompletionHandler: completionHandler)
        }
        
        public func createLoginButton(_ frame: CGRect, withCompletionHandler completionHandler: @escaping (_ loginButton: UIView) -&gt; ()) {
            return self.strategy.createLoginButton(frame, withCompletionHandler: completionHandler)
        }
        
        public func getUserId() -&gt; String {
            return self.strategy.getUserId()
        }
        
        public init(strategy: LoginStrategy) {
            self.strategy = strategy
        }
        
    }

**FacebookLoginStrategy**

    import Foundation
    import FacebookCore
    import FacebookLogin
    
    public class FacebookLoginStrategy: LoginStrategy {
        
        public var grantedPermissions: Set&lt;Permission&gt;? = nil
    
        public var declinedPermissions: Set&lt;Permission&gt;? = nil
        
        public var userId: String = &quot;&quot;
        
        public func login(_ viewController: UIViewController) {
            let loginManager = LoginManager()
            let permissions: [ReadPermission] = [.publicProfile, .userFriends, .email]
            loginManager.logIn(permissions, viewController: viewController) { loginResult in
                switch loginResult {
                case .failed(let error):
                    print(error)
                case .cancelled:
                    print(&quot;User cancelled login.&quot;)
                case .success(let grantedPermissions, let declinedPermissions, let accessToken):
                    self.userId = accessToken.userId ?? &quot;&quot;
                    self.grantedPermissions = grantedPermissions
                    self.declinedPermissions = declinedPermissions
                    print(&quot;Logged in!&quot;)
                }
            }
        }
        
        public func getUserId() -&gt; String {
            return userId
        }
        
        public func getUserInfo(withCompletionHandler completionHandler: @escaping (_ userInfo: [String: Any]?) -&gt; ()) {
            let request = GraphRequest(graphPath: &quot;me&quot;, parameters: [&quot;fields&quot;:&quot;email, name&quot;], accessToken: AccessToken.current, httpMethod: .GET, apiVersion: FacebookCore.GraphAPIVersion.defaultVersion)
            request.start { (response, result) in
                switch result {
                case .success(let value):
                    print(value.dictionaryValue)
                    completionHandler(value.dictionaryValue)
                case .failed(let error):
                    print(error)
                }
            }
        }
    
        public func createLoginButton(_ frame: CGRect, withCompletionHandler completionHandler: @escaping (_ loginButton: UIView) -&gt; ()) {
            let permissions: [ReadPermission] = [.publicProfile, .userFriends, .email]
            let loginButton = LoginButton(readPermissions: permissions)
            loginButton.frame = frame
            completionHandler(loginButton)
        }
    }

In my **ViewController**:

When I use:

    let facebookLoginProvider = LoginProvider(strategy: FacebookLoginStrategy())

It says:

&gt; &#39;FacebookLoginStrategy&#39; is inaccessable due to &#39;internal&#39; protection
&gt; level


Initializer is inaccessable due to &#39;internal&#39; protection level

I have used `use_frameworks!` in CocoaPods `Podfile` many times. I just wonder why do we use it? I couldn&#39;t get the straight forward answer of it.

Example:

    platform :ios, &#39;8.0&#39;
    use_frameworks!
    
    target &quot;CityWhether&quot; do
        pod &#39;Alamofire&#39;
        pod &#39;SwiftyJSON&#39;
    end

Why do we use use_frameworks! in CocoaPods?

I&#39;m using Vuetify.js components for my front-end in Vue.js and want to create a user registration form with file upload. I&#39;m able to create the form using `v-text-field` (a Vuetify component). 

 - How can I upload the file that is selected (input)?
 - Which component should I use or is there any other alternative way?

File upload in vuetify

I&#39;m in the sort of rapid prototyping phase of my React/javascript learning experience. I was wondering when folks would reach for a framework such as Next.js or Gatsby.js vs the standard Create React App.

I really dig the page based structuring and prospect for preloading links of Next.js. However, I&#39;m not sure when you would reach for Next as apposed to CRA or even ejected CRA.

Thanks!

When to use a react framework such as Next or Gatsby vs Create React App

We have 3 new options in &quot;Frameworks, Libraries, and Embedded Content&quot; section of Xcode11 Beta for adding libraries.

**Xcode Libraries section screenshot**

[![enter image description here][1]][1]


Can anyone explain what they do?


  [1]: https://i.stack.imgur.com/pMHUm.png

&quot;Do Not Embed&quot;, &quot;Embed &amp; Sign&quot;, &quot;Embed Without Signing&quot;. What are they?. What they do?

What does it mean and how can I fix it:

    pod install
    /Library/Ruby/Site/2.0.0/rubygems.rb:250:in `find_spec_for_exe&#39;: can&#39;t find gem cocoapods (&gt;= 0.a) (Gem::GemNotFoundException)
	from /Library/Ruby/Site/2.0.0/rubygems.rb:278:in `activate_bin_path&#39;
	from /usr/local/bin/pod:22:in `&lt;main&gt;&#39;

cocoapods not installing

When i type &quot;pod install&quot; in a correct directory I always get this

Analyzing dependencies

    [!] Could not automatically select an Xcode project. Specify one in your Podfile like so:
    
        project &#39;path/to/Project.xcodeproj&#39;


podfile

    platform :ios, &#39;8.0&#39;
    use_frameworks!
    
    target &#39;Posting&#39; do
    pod &#39;ALCameraViewController&#39;
    
    end

I&#39;m in the project directory where Podfile can be found.


Could not automatically select an Xcode project

I&#39;ve been banging my head against a wall with this for the last few days but despite multiple Google/SO/Github searches I can&#39;t find a resolution to the issues I&#39;m having!

All I&#39;m trying to do is create some unit tests for my app which makes use of Firebase pods.

I&#39;m using Xcode 7.3.1 &amp; Cocoapods 1.0.1. **Update:** Issue remains with Xcode 8.0

With this podfile:

    platform :ios, &#39;9.0&#39;
    use_frameworks!
    inhibit_all_warnings!

    target &#39;MyApp&#39; do
        pod &#39;Firebase&#39;
        pod &#39;Firebase/Auth&#39;
        pod &#39;Firebase/Database&#39;
        pod &#39;Firebase/Storage&#39;
    
        target &#39;MyAppTests&#39; do
            inherit! :search_paths
        end
    end

In my XCTest class I get

&gt; Missing required module &#39;Firebase&#39;

 error at `@testable import MyApp`

Alternatively with this podfile:

    platform :ios, &#39;9.0&#39;
    use_frameworks!
    inhibit_all_warnings!

    def common_pods
        pod &#39;SwiftyTimer&#39;
        pod &#39;Firebase&#39;
        pod &#39;Firebase/Auth&#39;
        pod &#39;Firebase/Database&#39;
        pod &#39;Firebase/Storage&#39;
    end

    target &#39;MyApp&#39; do
        common_pods
    end

    target &#39;MyAppTests&#39; do
        common_pods
    end

The tests build but my console is littered with warnings e.g.:

&gt; Class &lt;-FirebaseClassName-&gt; is implemented in both ...MyApp... and
&gt; ...MyAppTests... One of the two will be used. Which one is undefined

Content Type	Original Author	Original Content on Stackoverflow
Question	Justin Vallely	View Question on Stackoverflow
Solution 1 - Ios	Justin Vallely	View Answer on Stackoverflow
Solution 2 - Ios	CodeBender	View Answer on Stackoverflow

Error when trying to run `pod trunk push [cocoapod].podspec`

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Postgres conflict handling with multiple unique constraints

Can't Access Certificates, Identifiers & profiles within developer.apple.com

Attributions