Unity3D Google cardboard app crashes on iPhone when changing scenes - ios

I developed a Google cardboard app using Unity3D, but when I build it on my iPhone, the app shuts down while it is changing scenes:
But, it works in Unity PC, even though there are some shader problems.
How can I fix this?

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Vuforia in AR view shows black screen in iOS device

i am trying to use Vuforia SDK to build an AR application using Unity. The application i build is working fine on the Android device. Whereas the same code is giving me a black screen in AR view when i build for iOS.
The version of Unity used for developing the code is 2017.4.1f1 and Xcode version is 10.1. Can some one help me to understand the reason for this;
I have also followed the steps provided in the below video link.
https://www.youtube.com/watch?v=3roMSonIG5c
If your application is not using ARkit, you can just downgrade the unity version to 5.6.6 and install the older version of vuforia, the camera black out problem can be solve. This issue is due to vuforia problem.
Finally i could resolve this issue after migrating it to Unity 2018.2.16. In addition to that pl. ensure that
a. Vuforia ticked in the XR settings in the player settings,
b. AR camera in the inspector is set as main camera

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I am building an application where we are plotting trees using Cesium 3D Map. I tried to run the app on three different version of IOS 9, 10 and 11 but Cesium map doesn't load, it just shows the globe (only half of the screen) but doesn't plot. I am using Xcode 9.1 and also using apple's free trail developer account to deploy the app.
I am using IONIC Cordova frame work to Build the App.
I am using the exact same thing for Android and it works fine.
I added a picture of the app hopefully it will help.

Unity app crashes on iPhone 6 ONLY?

I have deployed a game made in Unity via TestFlight and do not know what to make of this issue - the game runs perfectly on all iPhone 6s and above. On iPhone 6 however and an iPad, it crashes right after the splash screen.
Crash report said initially it had to do with the Metal graphics settings - since (this is another problem) I haven't been able to get the crash reports from the last 2 builds, I am led to think it is still a graphics problem.
I've googled everything and found a few threads saying it was a Unity 5.5.0 problem and also that older devices do not support Metal. So today I updated to Unity 5.5.2f1 and removed Metal from the Graphics settings as
various links have said this has been an issue - https://forum.unity3d.com/threads/crash-on-startup-5-5-0f1-ios-10.446813/
https://issuetracker.unity3d.com/issues/ios-crash-on-presentrenderbuffer-gl-renderbuffer-in-presentgles-when-loading-a-scene-on-iphone-6s
but even with OpenGLES2 and 3 both in the options with Metal removed, it still crashes on just these older devices.
What is happening here? How can I fix this?
I am on the most updated Xcode, etc.

Camera stuck on reload in Google cardboard + unity app

I am developing a simple VR app for iOS using the Google Cardboard SDK with the latest version of Unity. When I build the app and run it from XCode on my iPhone, it works fine, and the camera tracks as it should. However, if I relaunch the application, the camera becomes stuck and does not respond to movement of the phone. The app is not frozen, however, as I can still interact with the screen.
Interestingly, the camera becomes unstuck if I tap the settings gear icon in the bottom center of the screen, and then hit the back button. It also becomes unstuck if I simply hit the home button and then reopen the app (without relaunching it).
Has anyone faced a similar problem and know how to overcome it?
Thanks so much!
It seems that installing the Cardboard SDK into Unity added an extra "Cardboard" Game Object. My problem was fixed when I deleted that object.

iPad app freezes but not on iPhone

I have an app which has started freezing at random when I run it on the iPad. It does not happen on any iPhone, not yet anyway. I download a bunch of images on my app, to display on a list, and store them to the internal cache in the background. Also, the app uses modal segues. The freeze is so random I am not able to pinpoint the source of the problem.
All this has started after the device was upgraded to iOS 7. I have also upgraded my Xcode to version 5 and am using iOS SDK 7. Everything was working fine on iOS 6.
Has anyone been facing similar problems?

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