Blazor MAUI ios blank screen

Question

Blazor MAUI ios blank screen

AdamZebrowski-4736 1

Hi,
I have created a stock Blazor MAUI project.
It can run fine on Windows, Android and Mac.
When I try to run it on IOS, it boots and then just displays a blank screen.
Is this a known issue?
How to fix that?
TIA,

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2022-12-21T02:01:42.437+00:00

Hi @AdamZebrowski-4736 , You mean you create and run the empty template MAUI Blazor project, right? Do you run the app on an iOS simulator or your physical device? May I ask the detailed VS version you are using and the detailed environment information? As noted in the Q&A FAQ: How to write a quality question
AdamZebrowski-4736 1 Reputation point

2022-12-21T10:48:57.673+00:00

Hello,
It happens both on VS 2022 and VS for Mac. Latest version (for VS 2022 it is: 17.4.3).
How to reproduce:

Create Blazor MAUI template with net7 from VS. Run on iPhone emulator. Empty screen.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2022-12-22T04:22:38.593+00:00

The iPhone system is iOS 16.2, right? Or it doesn't work on every iOS version ?
AdamZebrowski-4736 1 Reputation point

2022-12-22T09:27:00.917+00:00

Yes, 16.2. Any device iPhone, iPad via simulator.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2022-12-30T10:27:16.52+00:00

I have not heard from you for a couple of days. Please let me know if there is anything that I can help here.
Ahmad Nawaz 0 Reputation points

2025-09-01T16:28:58.9133333+00:00

I am also getting same error. Sometime it works fine and sometime blank white screen after splash screen.

1 answer

Your answer

Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2022-12-21T02:01:42.437+00:00

Hi @AdamZebrowski-4736 , You mean you create and run the empty template MAUI Blazor project, right? Do you run the app on an iOS simulator or your physical device? May I ask the detailed VS version you are using and the detailed environment information? As noted in the Q&A FAQ: How to write a quality question
AdamZebrowski-4736 1 Reputation point

2022-12-21T10:48:57.673+00:00

Hello,
It happens both on VS 2022 and VS for Mac. Latest version (for VS 2022 it is: 17.4.3).
How to reproduce:

Create Blazor MAUI template with net7 from VS. Run on iPhone emulator. Empty screen.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2022-12-22T04:22:38.593+00:00

The iPhone system is iOS 16.2, right? Or it doesn't work on every iOS version ?
AdamZebrowski-4736 1 Reputation point

2022-12-22T09:27:00.917+00:00

Yes, 16.2. Any device iPhone, iPad via simulator.
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,441 Reputation points Microsoft External Staff

2022-12-30T10:27:16.52+00:00

I have not heard from you for a couple of days. Please let me know if there is anything that I can help here.
Ahmad Nawaz 0 Reputation points

2025-09-01T16:28:58.9133333+00:00

I am also getting same error. Sometime it works fine and sometime blank white screen after splash screen.

Answer 1

Hello @AdamZebrowski-4736 ,

Xcode 14.2 is being worked on and it's not supported yet, you can try to downgrade back to Xcode 14.1 and run the app on iOS16.1 device.
(You can download Xcode 14.1 from the downloads page in the Apple Developer Portal , then install the packages, and open code, go to Xcode->Perference->Location->Command Line Tool, select Xcode14.1)

In addition, there is a same issue reported at GitHub - The MAUI Blazor doesn't work on iOS 16.2.#12124, you could follow the progress.

Best Regards,
Wenyan Zhang

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Blazor MAUI ios blank screen

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