I can observe the same issue with a `UICollectionView` and `UITableView`. I suspect it is a diagnostic output used to analyse the scrolling performance.

Note: I notice this issue from Xcode 10.2  


in `UICollectionView` if you swapping too much faster than collection getting **Freeze** for few moment on **Simulator** but **Real Device** working fine.


&gt; Earlier Xcode version this features is UIWorkIntervalTiming had its
&gt; logging privileges revoked

Check any third party UI/animation related library used with in scroll view/table view cell.Issue might be with those libraries.

You can simply silence the noise from the simulator:

 1. Xcode Menu: *Product* -&gt; *Scheme* -&gt; *Edit Scheme*
 2. Select the *Run(Debug)*
 3. On Environment Variables section set **OS_ACTIVITY_MODE** = **disable**

- Image

![Here is an image][1]


  [1]: https://i.stack.imgur.com/er7w8.png

Unfortunately, I can&#39;t find any information relating to this issue in Apple documentation, but I believe that it is some diagnostic output which is used to analyze the scrolling performance.

I am trying to run some code to create an LSTM model but i get an error:

```AttributeError: module &#39;tensorflow&#39; has no attribute &#39;get_default_graph&#39;```




My code is as follows:

```
from keras.models import Sequential

model = Sequential()
model.add(Dense(32, input_dim=784))
model.add(Activation(&#39;relu&#39;))
model.add(LSTM(17))
model.add(Dense(1, activation=&#39;sigmoid&#39;))
model.compile(loss=&#39;binary_crossentropy&#39;, optimizer=&#39;adam&#39;, metrics=[&#39;accuracy&#39;])
```

I have found someone else with a similar problem and they updated tensorflow and it works; but mine is up to date and still does not work. I am new to using keras and machine learning so I apologise if this is something silly!

How to fix &quot;AttributeError: module &#39;tensorflow&#39; has no attribute &#39;get_default_graph&#39;&quot;?

I created a data library, then tried to include the data library into another created library. Built fine, but received - &quot;No name was provided for external module &#39;my-data&#39; in output.globals – guessing &#39;myData&#39;&quot;. What am I missing?

Complete steps to re-create.

- ng new test-project --create=application=false
- cd test-project
- npm audit fix
- ng g library my-data
- ng g library my-core
- ng g application address-book
- ng build my-data
- Then in my-core.module add import { MyDataModule } from &#39;my-data&#39;;
- Then in my-core.module add imports: [MyDataModule]
- ng build my-core

my-core.module.ts

    import { NgModule } from &#39;@angular/core&#39;;
    import { MyCoreComponent } from &#39;./my-core.component&#39;;
    import { MyDataModule } from &#39;my-data&#39;;

    @NgModule({
      declarations: [MyCoreComponent],
      imports: [MyDataModule],
      exports: [MyCoreComponent]
    })
    export class MyCoreModule { }

- After build get &quot;No name was provided for external module &#39;my-data&#39; in output.globals – guessing &#39;myData&#39;&quot;

No name was provided for external module

Getting console log while scrolling `ScrollView`. 
Is there way to remove this?
&gt; 2019-03-27 12:33:34.109573+0530 MyApp[10465:46241] [UIWorkIntervalTiming] workIntervalStart: startTimestamp &gt; targetTimestamp; rolling forward by 1.116667

UIWorkIntervalTiming workIntervalStart

<p>Getting console log while scrolling <code>ScrollView</code>.
Is there way to remove this?
> 2019-03-27 12:33:34.109573+0530 MyApp[10465:46241] [UIWorkIntervalTiming] workIntervalStart: startTimestamp > targetTimestamp; rolling forward by 1.116667</p>


I was playing around with Xcode 10.2 since the update and when I try to run my app on ANY simulator with iOS version less than 10, the simulator will not start and crash then show the error below:

&gt; dyld: Library not loaded: /usr/lib/libauto.dylib   Referenced from:
&gt; /System/Library/Frameworks/Foundation.framework/Versions/C/Foundation 
&gt; Reason: no suitable image found.  Did find: 	/usr/lib/libauto.dylib:
&gt; mach-o, but not built for iOS simulator

I tried to create another new project fresh without touching anything, set the deployment target to iOS 9 and run on iOS 9 simulator again, same error was shown.

**UPDATE**

It seems like this issue only occur when your code base contain swift. Created a new project with objective c code base did not crash the simulator. For swift yes.


**SUMMARY**

 1. Xcode 10.2 contain swift code unable to run app on simulator with iOS 9
 2. I have done all the cleaning and delete derive data and the issue still persist.


Anyone has any idea ?

**FINAL UPDATE**

Apple just release Xcode 10.2.1 and it is part of the known issue for simulator, please refer to the link below for the workaround/fix:

https://developer.apple.com/documentation/xcode_release_notes/xcode_10_2_1_release_notes

Appreciate @russbishop &#39;s reply, answer accepted

Xcode 10.2 Failed to Run App on Simulator with iOS &lt; 10


After upgrading to Xcode 10.2 I am getting 2 errors 

&gt; :-1: Unable to load contents of file list: &#39;xxxxx/Pods/Target Support
&gt; Files/Pods-xxxx/Pods-xxxxx-frameworks-Debug-input-files.xcfilelist&#39;
&gt; (in target &#39;xxxxx&#39;)
&gt; 
&gt; 
&gt; 
&gt; :-1: Unable to load contents of file list: &#39;xxxxx/Pods/Target Support
&gt; Files/Pods-xxxxx/Pods-xxxxx-frameworks-Debug-output-files.xcfilelist&#39;
&gt; (in target &#39;xxxxx&#39;)

I updated all my  pod and changed build system to &quot;Legacy Build System&quot;   but still getting the same build error

Xcode 10.2 Update issue Build system error -1: Unable to load contents of file list: input/output xcfilelist

My device is running iOS 12.2, but the latest Xcode version available (on the store, and directly from developer.apple, which just pushes me to the store) does not provide the support files for that iOS version, so I cannot build to devices.

 Here&#39;s the error message from Xcode:

 [![enter image description here][1]][1]

And my Xcode build running on macOS Mojava v.10.14:

[![enter image description here][2]][2]

Are there any reputable other places to download a more recent Xcode beta from (or just the support files, in Xcode &gt; Contents &gt; Developer &gt; Platforms &gt; iPhoneOS.platform &gt; DeviceSupport), or am I missing something here? 




  [1]: https://i.stack.imgur.com/dmXBD.png
  [2]: https://i.stack.imgur.com/Y40p9.png

Xcode Missing Support Files iOS 12.2 (16E227)

I am trying to use a default AlertViewController with style **.actionSheet**. For some reason, the alert causes a **constraint error**. As long as the alertController is not triggered (displayed) through a button, there are no constraint errors on the whole view. Could it be that this is a **bug of Xcode?**

The exact error I get looks like this:

```
2019-04-12 15:33:29.584076+0200 Appname[4688:39368] [LayoutConstraints] Unable to simultaneously satisfy constraints.
	Probably at least one of the constraints in the following list is one you don&#39;t want. 
	Try this: 
		(1) look at each constraint and try to figure out which you don&#39;t expect; 
		(2) find the code that added the unwanted constraint or constraints and fix it. 
(
    &quot;&lt;NSLayoutConstraint:0x6000025a1e50 UIView:0x7f88fcf6ce60.width == - 16   (active)&gt;&quot;
)

Will attempt to recover by breaking constraint 
&lt;NSLayoutConstraint:0x6000025a1e50 UIView:0x7f88fcf6ce60.width == - 16   (active)&gt;

```

This is the code I use:

```
@objc func changeProfileImageTapped(){
        print(&quot;ChangeProfileImageButton tapped!&quot;)
        let alert = UIAlertController(title: &quot;Change your profile image&quot;, message: nil, preferredStyle: .actionSheet)
        
        alert.addAction(UIAlertAction(title: &quot;Photo Library&quot;, style: .default, handler: nil))
        alert.addAction(UIAlertAction(title: &quot;Online Stock Library&quot;, style: .default, handler: nil))
        alert.addAction(UIAlertAction(title: &quot;Cancel&quot;, style: .cancel, handler: nil))
        alert.view.tintColor = ColorCodes.logoPrimaryColor
        
        self.present(alert, animated: true)
    }
```
As you can see, it is **very basic**. That&#39;s why I am very confused about the strange behavior I get as this **default implementation** should not cause any errors, right?

[![Output I get][1]][1]

Although, through breaking the constraints, the alert displays properly on all screen sizes I would be really thankful for any help I get.


  [1]: https://i.stack.imgur.com/FTZFV.png

Swift default AlertViewController breaking constraints

I&#39;m unable to debug using VSCode for Flutter. I&#39;m using Windows and I&#39;m trying to use an Android emulator. 

I have attempted to reinstall Flutter, Android SDK and VSCode to fix the issue, as well as tried setting environment variables. 

This is the error that I get when launching debug mode.
```Failed to launch emulator: Error: Emulator didn&#39;t connect within 60 seconds```

Are there any better emulators that I can use for both Android and IOS, because I don&#39;t even know where to begin with IOS emulators. I&#39;m new to app development and want to get started making applications for both devices.

Failed to launch emulator: Error: Emulator didn&#39;t connect within 60 seconds

I recently upgraded to Swift 5, Xcode version 10.2 (10E125), and after fixing a few  compile issues on an app in progress, see this new and never-seen-before request. I can find no evidence of it in my project via direct searching, and no search returns on the net. No return from the pods within the project either.

This concerns me and wondered if anyone has any info on it.

“SimulatorTrampoline.xpc” would like to access the microphone

When I build project, I see build error: `ProjectName.debug.xcconfig unable to open file`. I couldn&#39;t understand my problem for a long time, but today I take attention, what directory is wrong: full error: `projectName/Pods/Pods...ProjectName.debug.xcconfig unable to open file` Where `Pods` part duplicated, so correct directory must be as `projectName/Pods...ProjectName.debug.xcconfig` How to fix it?

Xcode, Pods ProjectName.debug.xcconfig unable to open file. Wrong directory

When using Auto Layout, I am unable to set up a simple UIScrollView in my view controller in Xcode 11 beta. I know that I must constrain the scroll view to the edges, and then set the scroll view width and height equal to the width and height of the entire view that contains the scroll view. However, I am not getting the option to set equal widths and heights when I attempt to do so.

When I do the right-click-drag from the scroll view to the entire main view, I get the following options:

- Leading Space to Safe Area
- Top Space to Safe Area
- Trailing Space to Safe Area
- Bottom Space to Safe Area
- Center Horizontally in Safe Area
- Center Vertically in Safe Area

In other videos, there is an &quot;Equal Widths&quot; and &quot;Equal Heights&quot; option that I don&#39;t seem to have.

Am I doing something wrong, or did Apple change the way scroll views work in Xcode 11?

Content Type	Original Author	Original Content on Stackoverflow
Question	SPatel	View Question on Stackoverflow
Solution 1 - Ios	Nazmul Hasan	View Answer on Stackoverflow
Solution 2 - Ios	Rajeev Udayan	View Answer on Stackoverflow
Solution 3 - Ios	Alex Bes	View Answer on Stackoverflow

UIWorkIntervalTiming workIntervalStart

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Solution 2 - Ios

Solution 3 - Ios

No name was provided for external module

How to fix "AttributeError: module 'tensorflow' has no attribute 'get_default_graph'"?

Attributions