Web:Uncaught Unsupported operation: Platform._operatingSystem

[mokanus]

Describe the bug
The local operation is perfect, and when I use Flutter run -- release, it is also possible. However, when deploying and accessing Flutter build web, errors may occur

Platform

• Web

Platform OS version
MacOS：14.2.1 (23C71)
Chrome: 123.0.6312.87（正式版本） (x86_64)

How are you picking?
I just trigger by one button.Just like:

then:

After testing this logic, I found an error occurring in the part where the file retrieval is opened, which is the location shown in my screenshot. The issue is that when I click the button, there is no response, and the console displays this error log.

Error:
main.dart.js:5168 Uncaught Unsupported operation: Platform._operatingSystem
at Object.c (http://38.47.108.163/main.dart.js:5168:19)
at Object.b00 (http://38.47.108.163/main.dart.js:9314:15)
at Object.b01 (http://38.47.108.163/main.dart.js:9346:16)
at http://38.47.108.163/main.dart.js:106263:22
at a. [as yG] (http://38.47.108.163/main.dart.js:30:36)
at http://38.47.108.163/main.dart.js:106270:24
at a. [as aQc] (http://38.47.108.163/main.dart.js:30:36)
at Object.aVD (http://38.47.108.163/main.dart.js:10949:6)
at http://38.47.108.163/main.dart.js:106298:23
at a. [as aPV] (http://38.47.108.163/main.dart.js:27:35)

my code is very simple.

**Details to reproduce the issue**
Provide all the details to reproduce the issue.

**Error Log**

main.dart.js:5168 Uncaught Unsupported operation: Platform._operatingSystem
at Object.c (http://38.47.108.163/main.dart.js:5168:19)
at Object.b00 (http://38.47.108.163/main.dart.js:9314:15)
at Object.b01 (http://38.47.108.163/main.dart.js:9346:16)
at http://38.47.108.163/main.dart.js:106263:22
at a. [as yG] (http://38.47.108.163/main.dart.js:30:36)
at http://38.47.108.163/main.dart.js:106270:24
at a. [as aQc] (http://38.47.108.163/main.dart.js:30:36)
at Object.aVD (http://38.47.108.163/main.dart.js:10949:6)
at http://38.47.108.163/main.dart.js:106298:23
at a. [as aPV] (http://38.47.108.163/main.dart.js:27:35)

**Flutter Version details**

Flutter 3.19.5 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 300451adae (12 天前) • 2024-03-27 21:54:07 -0500
Engine • revision e76c956498
Tools • Dart 3.3.3 • DevTools 2.31.1

used:
file_picker: ^8.0.0+1

[mokanus]

I fixed by clean cache.

[omensight]

Is there a specific reason for this to happen? I can pick files without any problem in debug mode but when I build the project for flutter web it gives me this error.

[omensight]

I see that when I specify the type it stops working in production:
FilePickerResult? result = await FilePicker.platform.pickFiles( dialogTitle: LocaleKeys.pickBranchLogo.tr(), type: FileType.image, );
It works well without specifying the type.