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Couldn't start client Lua from VSCode devcontainer #2423
Description
How are you using the lua-language-server?
Visual Studio Code Extension (sumneko.lua)
Which OS are you using?
Linux
What is the issue affecting?
Other
Expected Behaviour
Lua language server starts correctly.
Actual Behaviour
I see this message when opening a Lua file, and language linting is not available:
Reproduction steps
-
Add a Dockerfile in .devcontainer folder, I'm using this:
FROM python:3.8-alpine as build LABEL description="Dev container - test-sumneko" ARG USERNAME=vscode ARG USER_UID=1000 ARG USER_GID=$USER_UID RUN addgroup -g $USER_GID $USERNAME && adduser -D -u $USER_UID -G $USERNAME $USERNAME USER $USERNAME CMD ["sh"] -
Specify sumneko extension in devcontainer.json:
{ "customizations": { "vscode": { "extensions": [ "sumneko.lua" ] } } } -
Do
Rebuild and Reopen in Containerfrom command palette -
Open any
.luafile in the workspace
Additional Notes
lua-language-server seems there but it gives a strange not found error when launched:
/workspaces/test-sumneko $ /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server
/bin/ash: /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: not found
/workspaces/test-sumneko $ ls -la /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server
-rwxrwxrwx 1 vscode vscode 2068664 Nov 21 11:24 /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-serverAs current workaround I'm adding this in Dockerfile:
RUN apk add --update --no-cache --repository http://dl-cdn.alpinelinux.org/alpine/edge/testing/ lua-language-server
and this in devcontainer.json:
"postCreateCommand": "sleep 10 && rm -vf /home/vscode/.vscode-server/extensions/sumneko.lua-*/server/bin/Linux/lua-language-server && ln -s /usr/bin/lua-language-server /home/vscode/.vscode-server/extensions/sumneko.lua-*/server/bin/Linux/",
Version used: sumneko.lua-2.5.3
UPDATE
Looking around, seems this is the root cause:
this can happen if binary is linked with a libc that doesn't exist on your device.
In fact:
/workspaces/test-sumneko $ ldd
musl libc (x86_64)
Version 1.2.4
Dynamic Program Loader
Usage: /lib/ld-musl-x86_64.so.1 [options] [--] pathname
/workspaces/test-sumneko $ ldd /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server
/lib64/ld-linux-x86-64.so.2 (0x7fd02de67000)
libm.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7fd02de67000)
libdl.so.2 => /lib64/ld-linux-x86-64.so.2 (0x7fd02de67000)
libpthread.so.0 => /lib64/ld-linux-x86-64.so.2 (0x7fd02de67000)
libc.so.6 => /lib64/ld-linux-x86-64.so.2 (0x7fd02de67000)
Error loading shared library ld-linux-x86-64.so.2: No such file or directory (needed by /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server)
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __longjmp_chk: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __fprintf_chk: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __printf_chk: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __strftime_l: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __memcpy_chk: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __sprintf_chk: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __snprintf_chk: symbol not found
Error relocating /home/vscode/.vscode-server/extensions/sumneko.lua-2.5.3/server/bin/Linux/lua-language-server: __fdelt_chk: symbol not found
Log File
No log file available.
Activity
PharosMarcusB commentedon May 19, 2026
To install libc, you'll want to replace your
postCreateCommandwithapk add libc6-compat