Running `sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService` from terminal solved my problem.

I had the same issue, all i did is

clear constraint, for my case the source was from UITableView, and make sure constraints are attached to safeare not superview. [see image][1]

from toolbar on the top go to Editor &gt; Canvas &gt; Layout Rectangle Very important you have to repeat this step 3 times

Quit XCode and reopen it again , all should be fixed

I&#39;ve noticed this happen when i switch view for different devices 8, 11, 4s

Good luck


  [1]: https://i.stack.imgur.com/cUnjt.png

````
BufferingHelper.EnableRewind();
````
Above is an extension method for HttpRequest object in ASP.NET Core 2.2. It is no more there in ASP.NET Core 3.0 (atleast with this name). I want to know it&#39;s alternate in ASP.NET Core 3.0. I am not sure if
````
HttpRequestRewindExtensions.EnableBuffering();
````
is the alternate.

What is the alternate of HttpRequest.EnableRewind() in ASP.NET Core 3.0?

When photographing a sheet of paper (e.g. with phone camera), I get the following result (left image) (jpg download [here](https://i.stack.imgur.com/mY7ep.jpg)). The desired result (processed manually with an image editing software) is on the right:

![](https://i.stack.imgur.com/mY7epm.jpg)
![](https://i.stack.imgur.com/se8hCm.jpg)

**I would like to process the original image with openCV to get a better brightness/contrast *automatically* (so that the background is more white)**.

Assumption: the image has an A4 portrait format (we don&#39;t need to perspective-warp it in this topic here), and the sheet of paper is white with possibly text/images in black or colors.

What I&#39;ve tried so far:

1. Various **adaptive thresholding** methods such as Gaussian, OTSU (see OpenCV doc [Image Thresholding](https://docs.opencv.org/3.4.0/d7/d4d/tutorial_py_thresholding.html)). It usually works well with OTSU:

        ret, gray = cv2.threshold(img, 0, 255, cv2.THRESH_OTSU + cv2.THRESH_BINARY)

    **but it only works for grayscale images** and not directly for color images. Moreover, **the output is binary (white or black), which I don&#39;t want**: I prefer to keep a color non-binary image as output
   
2. [Histogram equalization](https://en.wikipedia.org/wiki/Histogram_equalization) 

   - applied on Y (after RGB =&gt; YUV transform) 
   - or applied on V (after RGB =&gt; HSV transform),

   as suggested by this [answer](https://stackoverflow.com/a/15009815/1422096) (https://stackoverflow.com/questions/15007304/histogram-equalization-not-working-on-color-image-opencv) or this [one](https://stackoverflow.com/a/38312281/1422096) (https://stackoverflow.com/questions/31998428/opencv-python-equalizehist-colored-image):

        img3 = cv2.imread(f)
        img_transf = cv2.cvtColor(img3, cv2.COLOR_BGR2YUV)
        img_transf[:,:,0] = cv2.equalizeHist(img_transf[:,:,0])
        img4 = cv2.cvtColor(img_transf, cv2.COLOR_YUV2BGR)
        cv2.imwrite(&#39;test.jpg&#39;, img4)

    or with HSV:

        img_transf = cv2.cvtColor(img3, cv2.COLOR_BGR2HSV)
        img_transf[:,:,2] = cv2.equalizeHist(img_transf[:,:,2])
        img4 = cv2.cvtColor(img_transf, cv2.COLOR_HSV2BGR)

    Unfortunately, the result is quite bad since it creates awful micro contrasts locally (?):

    ![](https://i.stack.imgur.com/sfOJdm.jpg)

    I also tried YCbCr instead, and it was similar.

3. I also tried [CLAHE (Contrast Limited Adaptive Histogram Equalization)](https://docs.opencv.org/3.1.0/d5/daf/tutorial_py_histogram_equalization.html) with various `tileGridSize` from `1` to `1000`:

        img3 = cv2.imread(f)
        img_transf = cv2.cvtColor(img3, cv2.COLOR_BGR2HSV)
        clahe = cv2.createCLAHE(tileGridSize=(100,100))
        img_transf[:,:,2] = clahe.apply(img_transf[:,:,2])
        img4 = cv2.cvtColor(img_transf, cv2.COLOR_HSV2BGR)
        cv2.imwrite(&#39;test.jpg&#39;, img4)

    but the result was equally awful too.

4. Doing this CLAHE method with LAB color space, as suggested in the question https://stackoverflow.com/questions/25008458/how-to-apply-clahe-on-rgb-color-images:

        import cv2, numpy as np
        bgr = cv2.imread(&#39;_example.jpg&#39;)
        lab = cv2.cvtColor(bgr, cv2.COLOR_BGR2LAB)
        lab_planes = cv2.split(lab)
        clahe = cv2.createCLAHE(clipLimit=2.0,tileGridSize=(100,100))
        lab_planes[0] = clahe.apply(lab_planes[0])
        lab = cv2.merge(lab_planes)
        bgr = cv2.cvtColor(lab, cv2.COLOR_LAB2BGR)
        cv2.imwrite(&#39;_example111.jpg&#39;, bgr)

    gave bad result too. Output image:

    ![](https://i.stack.imgur.com/fi7Bcm.jpg)

5. Do an adaptive thresholding or histogram equalization **separately on each channel** (R, G, B) is not an option since it would mess with the color balance, as explained [here](https://stackoverflow.com/questions/15007304/histogram-equalization-not-working-on-color-image-opencv/15009815).

6. **&quot;Contrast strechting&quot;** method from `scikit-image`&#39;s tutorial on [Histogram Equalization](https://scikit-image.org/docs/dev/auto_examples/color_exposure/plot_equalize.html):

    &gt; the image is rescaled to include all intensities that fall within the 2nd and 98th percentiles

    is a little bit better, but still far from the desired result (see image on top of this question).

____

**TL;DR: how to get an automatic brightness/contrast optimization of a color photo of a sheet of paper with OpenCV/Python?** What kind of thresholding/histogram equalization/other technique could be used?

Automatic contrast and brightness adjustment of a color photo of a sheet of paper with OpenCV

I just updated the Xcode to version 10.3 (10G8).

Now my project is not run with this error:
![enter image description here][1]

    /* com.apple.actool.errors */
    : error: Failed to find a suitable device for the type IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) with runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4
        Failure Reason: Failed to create new simulator device that matches IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) for runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4 (Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4)
        Underlying Errors:
            Description: Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4
    /* com.apple.actool.compilation-results */
    /Users/xxx/Library/Developer/Xcode/DerivedData/xxxxx-dxlvvymxzdfqjubnuntqlxggtyja/Build/Intermediates.noindex/xxxxx.build/Debug-iphonesimulator/xxxxx.build/assetcatalog_generated_info.plist

And the storyboard is now like this:
[![enter image description here][2]][2]


  [1]: https://i.stack.imgur.com/vShwj.png
  [2]: https://i.stack.imgur.com/KP3nz.png


Storyboard broken after updating Xcode to version 10.3 (10G8) &amp; app no longer is running

I just updated the Xcode to version 10.3 (10G8).
Now my project is not run with this error:
<img src="https://i.stack.imgur.com/vShwj.png" alt="enter image description here">
<pre><code class="hljs language-rust">/* com.apple.actool.errors */
: error: Failed to find a suitable device for the type IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) with runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4
 Failure Reason: Failed to create new simulator device that matches IBSimDeviceTypeiPad2x (com.apple.dt.Xcode.IBSimDeviceType.iPad-2x) for runtime iOS 12.4 (12.4 - 16G73) - com.apple.CoreSimulator.SimRuntime.iOS-12-4 (Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4)
 Underlying Errors:
 Description: Invalid runtime: com.apple.CoreSimulator.SimRuntime.iOS-12-4
/* com.apple.actool.compilation-results */
/Users/xxx/Library/Developer/Xcode/DerivedData/xxxxx-dxlvvymxzdfqjubnuntqlxggtyja/Build/Intermediates.noindex/xxxxx.build/Debug-iphonesimulator/xxxxx.build/assetcatalog_generated_info.plist
</code></pre>
And the storyboard is now like this:
<a href="https://i.stack.imgur.com/KP3nz.png" target="_blank" rel="noopener noreferrer"><img src="https://i.stack.imgur.com/KP3nz.png" alt="enter image description here"></a>

I&#39;m currently using Xcode 11 Beta 5. Within my application, it runs fine on iOS 12 and under. However, on iOS 13 it looks like it&#39;s using the `UIScene` by default. This is causing my app to not do anything. 

When the app launches on fresh install, there is a terms and conditions the user must accept. After agreeing they go to a loading screen which then directs them to the main view. In the screenshot I posted, the view behind the current one in foreground is the splash loading screen. 

We will look into adding multiple views scene support throughout the application soon, but right now we have higher priority stuff we need to work on.

[![](https://imgur.com/i0qLhAL.png)](https://i.imgur.com/i0qLhAL.jpg)

&quot;Support multiple windows&quot; is already disabled in the General settings of the app&#39;s target. Also I have Enable Multiple Windows set to NO in the info.plist file. 


So far nothing has really worked. Basically I want to opt out/disable multiple windows and UIScene/SwiftUI to restore the original behaviour in iOS 10-12. Is this possible in iOS 13 or we have to update it?

Update:

Here is a screenshot of the view debug hierarchy. Left side is iOS 12, right side is on iOS 13. Without adding anything to the Info.plist nor any scene delegate classes or methods, why is it different? Pretty much just ran it in its existing production ready code on Xcode 11.

[![](https://imgur.com/C3aLsDo.png)](https://imgur.com/C3aLsDo)


Opt out of UISceneDelegate/SwiftUI on iOS

Yesterday, I uploaded my App to TestFlight and after a while Apple sent me this warning:

&gt; ITMS-90809: Deprecated API Usage - Apple will stop accepting submissions of apps that use UIWebView APIs . See https://developer.apple.com/documentation/uikit/uiwebview for more information.

The thing is that I don&#39;t use UIWebView in my app so I tried to update my pods but still the same thing.By the way this is my 3rd build on TestFlight and this is the first time apple sends me this. Any ideas?

**Update**

These are my pods:

    pod &#39;Firebase/Core&#39;
	pod &#39;Firebase/Firestore&#39;
	pod &#39;Firebase/MLVision&#39;
	pod &#39;Firebase/MLVisionTextModel&#39;
	pod &#39;SVProgressHUD&#39;
	pod &#39;SPPermission/Camera&#39;
	pod &#39;SPPermission/PhotoLibrary&#39;
	pod &#39;Mantis&#39;
	pod &#39;SwiftKeychainWrapper&#39;
	pod &#39;SwiftyOnboard&#39;
	pod &#39;Fabric&#39;
	pod &#39;Crashlytics&#39;

**Update 2** 

Seems like I found the frameworks with the issue.

    Binary file ./Pods/FirebaseMLCommon/Frameworks/FirebaseMLCommon.framework/FirebaseMLCommon matches
    Binary file ./Pods/Crashlytics/iOS/Crashlytics.framework/Crashlytics matches
    Binary file ./Pods/GoogleMobileVision/Detector/Frameworks/GoogleMobileVision.framework/GoogleMobileVision matches

So now do I have to wait for google to fix them and update my pods?





ITMS-90809: Deprecated API Usage -- Apple will stop accepting submissions of apps that use UIWebView APIs

I&#39;m trying to submit my app to TestFlight, but I keep getting this error. 

[![enter image description here][1]][1]


and this is what I have in my `info.plist`

[![enter image description here][2]][2]

How do I fix this? 


  [1]: https://i.stack.imgur.com/N2Q9M.png
  [2]: https://i.stack.imgur.com/wv7GR.png

How to fix &quot;App Store Connect Operation ERROR ITMS-90771&quot;

*I&#39;m a little afraid to ask this question because the problem seems huge to me and yet I don&#39;t see anyone panicking about it. I&#39;m a little afraid to sound crazy, but I&#39;m going to go for it :*

As we can read on Apple&#39;s post [Submissions Update][1] :

&gt; Starting with Xcode 11, Application Loader is no longer included in
&gt; Xcode. For details on how to upload your apps to App Store Connect using Xcode, see Xcode Help.

It is legitimate for people and organizations using the Phonegap build service to ask themselves how to put our IPA online knowing that we do not have access to the Xcode project file.

Apple gives us a new tool called **Archives organizer** but as we can read on the [documentation][2]:

&gt; In the Archives organizer, select the archive you want to upload, then
&gt; click Distribute App.

**Okay, where&#39;s my archive? Is an IPA considered an archive? How do I integrate my IPA into this software?**

Maybe I haven&#39;t found the solution that is right in front of me but for the moment I&#39;m especially afraid of the future of Phonegap build if there is no alternative tool for the Application Loader.

**So, did you even facing the same problem and do you find a solution ? (excepting a migration to Cordova)**

I know that hybrid applications don&#39;t have a long life ahead of them because of the depreciation of UIWebView and the low compatibility of cordova with WKWebView but I can&#39;t believe Apple decides to kill Phonegap build without a warning. And as usual, Phonegap&#39;s teams are not very talkative.

Edit
---

Well, It is possible to transfer your ipa with the following command but did it is worked because I have the old version of Xcode (10) and so it will be deprecated when Xcode 11 release ?

    xcrun altool --upload-app --type ios --file &quot;path/to/application.ipa&quot; --username &quot;YOUR_ITMC_USER&quot; --password &quot;YOUR_ITMC_PASSWORD&quot;

 

  [1]: https://developer.apple.com/app-store-connect/whats-new/?id=submissionsupdate9-10
  [2]: https://help.apple.com/xcode/mac/current/#/dev442d7f2ca

How to upload IPA now that Application Loader is no longer included in Xcode 11

I am trying to run my application in debug mode from VSCode. However, every time, regardless if I am running on a simulator or a real device, the debug console outputs 
``` 
Could not find the built application bundle at build/ios/iphonesimulator/Runner.app.
```
or 
``` 
Could not find the built application bundle at build/ios/iphoneos/Runner.app.
```
When I went to the specified directory, my app bundle is being built every time but instead of being named Runner.app it is named MyAppName.app. I suspect the difference in name is causing the VSCode compiler to not being able to locate Runner.app. 

My question: How do I change my build settings so that the build bundle is named Runner.app again? 

Content Type	Original Author	Original Content on Stackoverflow
Question	Ahmadreza	View Question on Stackoverflow
Solution 1 - Xcode	Justin Vallely	View Answer on Stackoverflow
Solution 2 - Xcode	z33	View Answer on Stackoverflow
Solution 3 - Xcode	mkabbasi	View Answer on Stackoverflow

Storyboard broken after updating Xcode to version 10.3 (10G8) & app no longer is running

Xcode Problem Overview

Xcode Solutions

Solution 1 - Xcode

Solution 2 - Xcode

Solution 3 - Xcode

Automatic contrast and brightness adjustment of a color photo of a sheet of paper with OpenCV

What is the alternate of HttpRequest.EnableRewind() in ASP.NET Core 3.0?

Attributions