Not working on Android Termux

[wherewhere]

Environment data

dotnet --info output:

.NET SDK:
 Version:           10.0.109
 Commit:            901ca94124
 Workload version:  10.0.100-manifests.b0c14421
 MSBuild version:   18.0.11

Runtime Environment:
 OS Name:     Linux
 OS Version:  
 OS Platform: Linux
 RID:         linux-bionic-arm64
 Base Path:   /data/data/com.termux/files/usr/lib/dotnet/sdk/10.0.109/

.NET workloads installed:
There are no installed workloads to display.
Configured to use workload sets when installing new manifests.
No workload sets are installed. Run "dotnet workload restore" to install a workload set.

Host:
  Version:      10.0.9
  Architecture: arm64
  Commit:       901ca94124

.NET SDKs installed:
  8.0.128 [/data/data/com.termux/files/usr/lib/dotnet/sdk]
  9.0.118 [/data/data/com.termux/files/usr/lib/dotnet/sdk]
  10.0.109 [/data/data/com.termux/files/usr/lib/dotnet/sdk]

.NET runtimes installed:
  Microsoft.AspNetCore.App 8.0.28 [/data/data/com.termux/files/usr/lib/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 9.0.17 [/data/data/com.termux/files/usr/lib/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.AspNetCore.App 10.0.9 [/data/data/com.termux/files/usr/lib/dotnet/shared/Microsoft.AspNetCore.App]
  Microsoft.NETCore.App 8.0.28 [/data/data/com.termux/files/usr/lib/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 9.0.17 [/data/data/com.termux/files/usr/lib/dotnet/shared/Microsoft.NETCore.App]
  Microsoft.NETCore.App 10.0.9 [/data/data/com.termux/files/usr/lib/dotnet/shared/Microsoft.NETCore.App]

Other architectures found:
  None

Environment variables:
  Not set

global.json file:
  Not found

VS Code version: 1.128.0
C# Extension version: 2.146.2

C# logs

When try to run it on VSCode in Termux, it throw:

C# output window contents:

[info] [ERROR]: C# Extension failed to get platform information.

C# Dev output window contents:

[error] Error occurred in activate: Error: Activating extension 'ms-dotnettools.csharp' failed: Unsupported platform: android.

After I change case"linux": to case"linux":case"android": in GetCurrent function in extension.js, it throw:

C# output window contents:

[info] [ERROR]: C# Extension failed to get platform information.

C# Dev output window contents:

2026-07-14 16:40:19.086 [info] Experimentation service initialization failed: TypeError: o.ExperimentationService is not a constructor
2026-07-14 16:40:19.759 [info] Default solution: 
2026-07-14 16:40:21.735 [info] Starting: Opening a solution
2026-07-14 16:40:21.736 [info] Starting: processing the solution file "/data/data/com.termux/files/home/Downloads/JSILTest/JSILTest.slnx" in C# Dev Kit server
2026-07-14 16:40:21.736 [info] Checking if the opened file is a solution filter: /data/data/com.termux/files/home/Downloads/JSILTest/JSILTest.slnx
2026-07-14 16:40:21.749 [info] Starting: Spawn .NET server
2026-07-14 16:40:21.749 [info] Using dotnet resolution provided by ".NET Install Tool"
2026-07-14 16:40:21.945 [info] Using existing .NET runtime at "/data/data/com.termux/files/usr/lib/dotnet/dotnet" to load C# Dev Kit processes
2026-07-14 16:40:22.025 [info] .NET SDK found: "/data/data/com.termux/files/usr/lib/dotnet/dotnet"
2026-07-14 16:40:22.026 [info] Workspace folder: "/data/data/com.termux/files/home/Downloads/JSILTest" requires SDK version: 10.0.109
2026-07-14 16:40:22.029 [info] ASP.NET runtime found, using ASP.NET runtimeconfig for project system host.
2026-07-14 16:40:22.110 [info] .NET server STDERR: error: "/data/data/com.termux/files/home/.local/share/code-server/extensions/ms-dotnettools.csdevkit-3.27.196/components/vs-green-server/platforms/linux-arm64/node_modules/@microsoft/visualstudio-server.linux-arm64/Microsoft.VisualStudio.Code.Server": executable's TLS segment is underaligned: alignment is 8 (skew 0), needs to be at least 64 for ARM64 Bionic

2026-07-14 16:40:22.155 [info] .NET server exited with null

Steps to reproduce

1. Open C# project on VSCode in Termux
2. Not working

Expected behavior

Working on Termux.

Actual behavior

Not working on Termux.

[dibarbet]

I'm not very familiar with Android Termux, but it looks like it uses a different C library (bionic). We do not build a version of the C# language server that is compatible with this platform. From this list, we only support

• linux-x64
• linux-arm64
• linux-musl-x64
• linux-musl-arm64

You may be able to build the C# language server yourself for linux-bionic-arm64 and add support for that platform in the C# extension, but otherwise this is not supported, and we currently have no plans to implement support.