Compilation error in VS 2026 18.6.0: C2338 static assertion failed - experimental coroutine headers deprecated (error STL1011)

[yiky84119]

Which API doesn't behave as documented, and how does it misbehave?
just_audio_windows: 0.2.3

Issue 1: Experimental coroutine deprecation error
C:\Program Files\Microsoft Visual Studio\18\Community\VC\Tools\MSVC\14.51.36231\include\experimental\coroutine(37,1): error C2338: static assertion failed: 'error STL1011: The /await compiler option, <experimental/coroutine>, <experimental/generator>, and <experimental/resumable> are deprecated by Microsoft and will be REMOVED SOON. They are superseded by the C++20 and C++23 headers. You can define _SILENCE_EXPERIMENTAL_COROUTINE_DEPRECATION_WARNINGS to suppress this error for now.'

Issue 2: File encoding error for uri_utils.hpp
The uri_utils.hpp file has an incorrect file encoding format. It needs to be saved as **Unicode (UTF-8 with BOM)

Error messages

static assertion failed: 'error STL1011: The /await compiler option, <experimental/coroutine>, <experimental/generator>, and <experimental/resumable> are deprecated by Microsoft and will be REMOVED SOON. They are superseded by the C++20 <coroutine> and C++23 <generator> headers. You can define _SILENCE_EXPERIMENTAL_COROUTINE_DEPRECATION_WARNINGS to suppress this error for now.'

Expected behavior
A clear and concise description of what you expected to happen.

Desktop (please complete the following information):

• OS: Widnows

Flutter SDK version

[✓] Flutter (Channel stable, 3.41.9, on Microsoft Windows [版本 10.0.26200.8457], locale zh-CN)
[✓] Windows Version (Windows 11 or higher, 25H2, 2009)
[✓] Chrome - develop for the web
[✓] Visual Studio - develop Windows apps (Visual Studio Community 2026 18.6.0)
[✓] Proxy Configuration
[✓] Connected device (3 available)
[✓] Network resources

Additional context
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