curl CLI stop working after sourcing toolchain env (curl: symbol lookup error)

RE: curl CLI stop working after sourcing toolchain env (curl: symbol lookup error)

Håkon Alseth — Fri, 23 Jan 2026 13:23:33 GMT

Hi,

Unfortunately, we do not have a good workaround for this use-case with our toolchain.

It can be possible if you manually install sdk-ng:

https://github.com/zephyrproject-rtos/sdk-ng

However, we unfortunately do not support manual installation.

Kind regards,

Håkon

RE: curl CLI stop working after sourcing toolchain env (curl: symbol lookup error)

Rodrigo Moraes — Fri, 16 Jan 2026 11:56:45 GMT

Yes, this does circumvent the problem:

~$ eval "$(nrfutil sdk-manager toolchain env --ncs-version v3.2.1 --as-script sh)"
~$ curl example.org
curl: symbol lookup error: /lib/x86_64-linux-gnu/libcurl.so.4: undefined symbol: nghttp2_option_set_no_rfc9113_leading_and_trailing_ws_validation
~$ LD_LIBRARY_PATH= curl example.org
<!doctype html><html lang="en"><head><title>Example Domain</title><meta name="viewport" content="width=device-width, initial-scale=1"><style>body{background:#eee;width:60vw;margin:15vh auto;font-family:system-ui,sans-serif}h1{font-size:1.5em}div{opacity:0.8}a:link,a:visited{color:#348}</style><body><div><h1>Example Domain</h1><p>This domain is for use in documentation examples without needing permission. Avoid use in operations.<p><a href="https://iana.org/domains/example">Learn more</a></div></body></html>

My main problem is that I use Neovim in the terminal, and one of the plugins I have is using curl internally. I could open Neovim with LD_LIBRARY_PATH='', but I am afraid that may break something in the toolchain.

RE: curl CLI stop working after sourcing toolchain env (curl: symbol lookup error)

Håkon Alseth — Fri, 16 Jan 2026 11:46:27 GMT

Hi,

Could you try to clear it specifically when calling curl and see if this helps?

Ie. something like this:

LD_LIBRARY_PATH= curl <args>

Kind regards,

Håkon