4,153 questions
it looks like you .net code is throwing an error when it called back by UI framework after a scene transition. You probably need to add more explicit error handling and logging.
iOS app crash in release mode
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(188.79999999999998, 4%, 28%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EB%3C/text%3E%3C/svg%3E)
Bhuwan
881
Reputation points
My iOS app crashes after installation on a device through distribution, but it works fine in debug mode. How can I check why my app crashes after installation on an iPhone? I am using the latest .NET 9.0.
Developer technologies | .NET | .NET MAUI
{count} votes
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Viorel 122.6K Reputation points2025-01-06T13:31:25.1766667+00:00 What variation of crash was observed?
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(22.400000000000002, 3%, 12%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EWZ%3C/text%3E%3C/svg%3E)
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff2025-01-10T05:41:35.9966667+00:00 How can I check why my app crashes after installation on an iPhone?
Do you install the app from Appstore? Or you just upload the app to appstore connect and install it from TestFlight?
If you test the app from TestFlight, you could find the log on appstore connect portal.
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Bhuwan 881 Reputation points
2025-01-10T06:52:34.6566667+00:00 install app through firebase distribution.
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Bhuwan 881 Reputation points
2025-01-10T07:06:06.9366667+00:00 i also install app through both Firebase and TestFlight but not able to see any crash but when open app after some time the app will close automatically.
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Bhuwan 881 Reputation points
2025-01-10T07:07:26.37+00:00 {app_namedev,timestamp2025-01-07 22.txt
this error log iOS device Analytics
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Bhuwan 881 Reputation points
2025-01-10T07:07:54.26+00:00 -
Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff
2025-01-13T09:16:34.8066667+00:00 Form the log, we can see there is an exception
"exception" : {"codes":"0x0000000000000000, 0x0000000000000000","rawCodes":[0,0],"type":"EXC_CRASH","signal":"SIGABRT"},. Are there any other error messages? Besides, what's the Xcode version when you publish the app? I saw the iPhone OS 18.2, do you have the same issue on other iOS devices? -
Bhuwan 881 Reputation points
2025-01-13T09:31:50.2133333+00:00 i am using XCode 16.2 - this issue happen when install application in mobile device after release, debug is working fine
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Bhuwan 881 Reputation points
2025-01-13T09:32:09.4633333+00:00 getting same issue other deice also
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Wenyan Zhang (Shanghai Wicresoft Co,.Ltd.) 36,436 Reputation points Microsoft External Staff
2025-01-20T01:48:35.5+00:00 Please check if you add the following on your .csproj file.
<UseInterpreter>true</UseInterpreter> <MtouchInterpreter>all</MtouchInterpreter> <MtouchLink>None</MtouchLink>
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(211.20000000000002, 61%, 30%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBS%3C/text%3E%3C/svg%3E)
Bruce (SqlWork.com) 77,766 Reputation points Volunteer Moderator2025-01-13T17:27:47.24+00:00