MAUI app crashing with release mode. Works fine with debud mode ?

Question

MAUI app crashing with release mode. Works fine with debud mode ?

KallemSandeep-8232 41

MAUI app crashes with release mode. Works fine with debug mode.

Targeting .net run time is .net 7.0. We are using a few syncfusion controls in our application. Those nuggets were up to date till now.

Here are the crash details:

System.MethodAccessException: Method `Syncfusion.Maui.Core.SfView.Add(Microsoft.Maui.Controls.View)' is inaccessible from method xyz.

Any suggestions on this, please.

Anonymous

2023-12-14T06:38:10.4633333+00:00

Can you share completely exception here? Or can you find specific control that cause this issue?

What file type did you release? .aab file or .apk file?

You can try to disable the Trimming and release it, if this exception is disappeared.

Trimming options

Learn how to control trimming of self-contained apps.

As note:Syncfusion.Maui is a third-party control, It is not supported in Q&A, you can ask for help in the syncfusion feedback
KallemSandeep-8232 41 Reputation points

2023-12-15T14:03:20.3233333+00:00
Thanks for your quick response @Leon Lu.

Unable to find exactly which control caused this crash.

I am trying the .aab file.

Even I tried disabling trimming options as well but no use.

Here is the detailed crash response.

<InitializeComponent>_anonXamlCDataTemplate_72.LoadDataTemplate()

Microsoft.Maui.Controls.ElementTemplate.CreateContent()

Microsoft.Maui.Controls.Internals.DataTemplateExtensions.CreateContent(DataTemplate self, Object item, BindableObject container)

Microsoft.Maui.Controls.Internals.TemplatedItemsList2[[Microsoft.Maui.Controls.ItemsView1[[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].ActivateContent(Int32 index, Object item)

Microsoft.Maui.Controls.Internals.TemplatedItemsList2[[Microsoft.Maui.Controls.ItemsView1[[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].CreateContent(Int32 index, Object item, Boolean insert)
Anonymous

2023-12-18T05:46:55.03+00:00

I am trying the .aab file.

Are you installing .aab file to the android device directly? If so, Android App Bundles is the default publishing format for apps on the Google Play Store. But Android devices require .apk files to install applications.
KallemSandeep-8232 41 Reputation points

2023-12-19T15:13:23.3033333+00:00

I can install .aab on real devices. I am uploading through internal beta from Google Play. There are no issues with installing the app. App installing successfully and able to log in to my application. But it crashes after login to the app on the Dashboard page. There I am using a few syncfusion controls.
Anonymous

2023-12-22T06:20:55.09+00:00

Can you try to remove these syncfusion controls to exclude the third-party plugin issue?
Muhammed Shafeek 0 Reputation points

2025-02-04T13:31:38.6033333+00:00
This may not exactly be relevant to this case, but I noticed something that caused my app to crash in Release mode which didn't have any issues in Debug mode. I had to literally do trial and error, commenting out various parts of xaml UI and finally after several frustrating hours I could fix the issue. Thought of posting it here as it could be helpful!

"Assigning string value to a FormattedString type directly inside xaml file cause crash in Release Mode (however, the assignment works just fine if done in the .cs)".

<Label x:Name="label" FontSize="14" FormattedText="This assignment would crash the app in release mode!" TextColor="Blue"/>

Fix Option1: in xaml file

<Label x:Name="label" FontSize="14" TextColor="Blue"> <Label.FormattedText> <FormattedString> <Span Text="This assignment works fine."/> </FormattedString> </Label.FormattedText> </Label>

Fix Option 2: in xaml.cs file

label.FormattedText = "This assignment works fine."

1 answer

Your answer

Anonymous

2023-12-14T06:38:10.4633333+00:00

Can you share completely exception here? Or can you find specific control that cause this issue?

What file type did you release? .aab file or .apk file?

You can try to disable the Trimming and release it, if this exception is disappeared.

Trimming options

Learn how to control trimming of self-contained apps.

As note:Syncfusion.Maui is a third-party control, It is not supported in Q&A, you can ask for help in the syncfusion feedback
KallemSandeep-8232 41 Reputation points

2023-12-15T14:03:20.3233333+00:00

Thanks for your quick response @Leon Lu.

Unable to find exactly which control caused this crash.

I am trying the .aab file.

Even I tried disabling trimming options as well but no use.

Here is the detailed crash response.

<InitializeComponent>_anonXamlCDataTemplate_72.LoadDataTemplate()

Microsoft.Maui.Controls.ElementTemplate.CreateContent()

Microsoft.Maui.Controls.Internals.DataTemplateExtensions.CreateContent(DataTemplate self, Object item, BindableObject container)

Microsoft.Maui.Controls.Internals.TemplatedItemsList2[[Microsoft.Maui.Controls.ItemsView1[[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].ActivateContent(Int32 index, Object item)

Microsoft.Maui.Controls.Internals.TemplatedItemsList2[[Microsoft.Maui.Controls.ItemsView1[[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]], Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[Microsoft.Maui.Controls.Cell, Microsoft.Maui.Controls, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].CreateContent(Int32 index, Object item, Boolean insert)
Anonymous

2023-12-18T05:46:55.03+00:00

I am trying the .aab file.

Are you installing .aab file to the android device directly? If so, Android App Bundles is the default publishing format for apps on the Google Play Store. But Android devices require .apk files to install applications.
KallemSandeep-8232 41 Reputation points

2023-12-19T15:13:23.3033333+00:00

I can install .aab on real devices. I am uploading through internal beta from Google Play. There are no issues with installing the app. App installing successfully and able to log in to my application. But it crashes after login to the app on the Dashboard page. There I am using a few syncfusion controls.
Anonymous

2023-12-22T06:20:55.09+00:00

Can you try to remove these syncfusion controls to exclude the third-party plugin issue?
Muhammed Shafeek 0 Reputation points

2025-02-04T13:31:38.6033333+00:00

This may not exactly be relevant to this case, but I noticed something that caused my app to crash in Release mode which didn't have any issues in Debug mode. I had to literally do trial and error, commenting out various parts of xaml UI and finally after several frustrating hours I could fix the issue. Thought of posting it here as it could be helpful!

"Assigning string value to a FormattedString type directly inside xaml file cause crash in Release Mode (however, the assignment works just fine if done in the .cs)".

<Label x:Name="label" FontSize="14" FormattedText="This assignment would crash the app in release mode!" TextColor="Blue"/>

Fix Option1: in xaml file

<Label x:Name="label" FontSize="14" TextColor="Blue"> <Label.FormattedText> <FormattedString> <Span Text="This assignment works fine."/> </FormattedString> </Label.FormattedText> </Label>

Fix Option 2: in xaml.cs file

label.FormattedText = "This assignment works fine."

Answer 1

Chuck C Giddens 15

99.9% of the time this is due to a missing Style or StyleClass reference using StaticResources. This is truely a whomping pain in the neck since there is NO WARNING during debug that this is an issue. It only appears when detached debugger or release builds. TRULY A BIG MISSING FEATURE for the build to tell me that a StaticResource does not exist...then just crash on load with NO ERROR REPORTING.

Delwar Hossain 0 Reputation points

2024-11-08T05:33:25.43+00:00

Thank you. It was a pain in the a$$ but you saved me from the pain.
Peter Joseph 1 Reputation point

2025-03-10T02:33:50.71+00:00

I have ran into the exact same problem, and tried removing all the style, but no luck, don't know which direction should I head towards.
Anonymous

2025-03-10T03:24:02.93+00:00

Peter Joseph This thread is too old, please open a new thread about your issue.

When doing so, please clarify the problem:

·        What exactly is failing (which line of code) and in what way is it failing?

·        What behavior do you expect, and how is that different from the actual behavior?

·        If you get an error message, then what is the message?
Jan Housa 0 Reputation points

2025-10-21T00:59:53.3733333+00:00

Man you are absolute life saver. Its 3 AM and I have been trying to fix crashing of my app for 6 hours straight. The problem was really with styles!!! THANKS

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MAUI app crashing with release mode. Works fine with debud mode ?

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