Github copilot "Failed to send message: 400"

[sudo-tee]

When trying to send a request to Github copilot (any model) I get this error

Failed to send message: 400

This is the config I have:

{
  "$schema": "https://opencode.ai/config.json",
  "theme": "opencode",
  "model": "github-copilot/gpt-4.1",
  "autoshare": false,
  "autoupdate": true
}

This is the logs I have:

opencode --print-logs
INFO  2025-06-26T10:33:59 +40ms service=default version=0.1.140 args=--print-logs opencode
INFO  2025-06-26T10:33:59 +0ms service=app cwd=/home/francis/dots creating
INFO  2025-06-26T10:33:59 +3ms service=app git=/home/francis/dots git
INFO  2025-06-26T10:33:59 +2ms service=app name=provider registering service
INFO  2025-06-26T10:33:59 +9ms service=app name=config registering service
INFO  2025-06-26T10:33:59 +7ms service=config $schema=https://opencode.ai/config.json theme=opencode autoshare=false autoupdate=true model=github-copilot/gpt-4.1 loaded
INFO  2025-06-26T10:33:59 +2ms service=models.dev refreshing
INFO  2025-06-26T10:33:59 +0ms service=provider init
INFO  2025-06-26T10:33:59 +3ms service=provider providerID=github-copilot found
INFO  2025-06-26T10:33:59 +0ms service=app name=share registering service
INFO  2025-06-26T10:33:59 +0ms service=bus type=storage.write subscribing
INFO  2025-06-26T10:33:59 +0ms service=app name=bus registering service
INFO  2025-06-26T10:33:59 +202ms service=server method=POST path=/config_get request
INFO  2025-06-26T10:33:59 +0ms service=server duration=0 response
INFO  2025-06-26T10:33:59 +4ms service=server method=GET path=/event request
INFO  2025-06-26T10:33:59 +1ms service=server event connected
INFO  2025-06-26T10:33:59 +2ms service=bus type=* subscribing
INFO  2025-06-26T10:33:59 +1ms service=server duration=3 response
INFO  2025-06-26T10:33:59 +13ms service=server method=POST path=/provider_list request
                                                                                      INFO  2025-06-26T10:33:59 +2ms service=server duration=1 response
                                                                                                                                                       INFO  2025-06-26T10:34:05 +2702ms service=bus type=* unsubscribing
INFO  2025-06-26T10:34:05 +0ms service=server event disconnected
INFO  2025-06-26T10:34:05 +1ms service=app name=session shutdown

Whe I run it with opencode run

opencode run "hello"

█▀▀█ █▀▀█ █▀▀ █▀▀▄ █▀▀ █▀▀█ █▀▀▄ █▀▀
█░░█ █░░█ █▀▀ █░░█ █░░ █░░█ █░░█ █▀▀
▀▀▀▀ █▀▀▀ ▀▀▀ ▀  ▀ ▀▀▀ ▀▀▀▀ ▀▀▀  ▀▀▀

>  hello

@  github-copilot/gpt-4.1

Error: Unexpected error, check log file at /home/francis/.local/share/opencode/log/2025-06-26T103642.log for more details

This is the logfile content:

 cat /home/francis/.local/share/opencode/log/2025-06-26T103642.log
INFO  2025-06-26T10:36:42 +62ms service=default version=0.1.140 args=run,hello opencode
INFO  2025-06-26T10:36:42 +3ms service=app cwd=/home/francis/dots creating
INFO  2025-06-26T10:36:42 +1ms service=app git=/home/francis/dots git
INFO  2025-06-26T10:36:42 +1ms service=app name=share registering service
INFO  2025-06-26T10:36:42 +0ms service=bus type=storage.write subscribing
INFO  2025-06-26T10:36:42 +0ms service=app name=bus registering service
INFO  2025-06-26T10:36:42 +0ms service=session id=ses_854305924ffeQBgUCJmma6Z15p version=0.1.140 title=New Session - 2025-06-26T10:36:42.075Z time=[object Object] created
INFO  2025-06-26T10:36:42 +0ms service=app name=session registering service
INFO  2025-06-26T10:36:42 +0ms service=app name=storage registering service
INFO  2025-06-26T10:36:42 +1ms service=storage path=/home/francis/.local/share/opencode/project/home-francis-dots/storage init
INFO  2025-06-26T10:36:42 +0ms service=bus type=storage.write publishing
INFO  2025-06-26T10:36:42 +0ms service=app name=config registering service
INFO  2025-06-26T10:36:42 +2ms service=config $schema=https://opencode.ai/config.json theme=opencode autoshare=false autoupdate=true model=github-copilot/gpt-4.1 loaded
INFO  2025-06-26T10:36:42 +0ms service=bus type=session.updated publishing
INFO  2025-06-26T10:36:42 +0ms service=bus type=message.part.updated subscribing
INFO  2025-06-26T10:36:42 +1ms service=session session=ses_854305924ffeQBgUCJmma6Z15p chatting
INFO  2025-06-26T10:36:42 +1ms service=app name=provider registering service
INFO  2025-06-26T10:36:42 +1ms service=models.dev refreshing
INFO  2025-06-26T10:36:42 +1ms service=provider init
INFO  2025-06-26T10:36:42 +2ms service=provider providerID=github-copilot found
INFO  2025-06-26T10:36:42 +0ms service=provider providerID=github-copilot modelID=gpt-4.1 getModel
INFO  2025-06-26T10:36:42 +1ms service=provider status=started providerID=github-copilot getSDK
INFO  2025-06-26T10:36:42 +0ms service=provider status=completed duration=0 providerID=github-copilot getSDK
ERROR 2025-06-26T10:36:42 +4ms service=default providerID=github-copilot name=ProviderInitError message=ProviderInitError cause=ResolveMessage: Cannot find module '/home/francis/.cache/opencode/node_modules/@ai-sdk/openai-compatible' from '/$bunfs/root/opencode' fatal

Thanks a lot for your help

[sudo-tee]

The folder /home/francis/.cache/opencode/ doe not contains any node_modules folder.

I ran a pnpm install in this folder and it worked after that.

[thdxr]

did it contain a package.json?

[sudo-tee]

Yes this is why a pnpm install fixed the issue temporarly

[dabing1022]

It should be fixed instead of manually running pnpm install.

[adrian-martinez-dev]

Updated to 0.2.30 version with "opencode upgrade" and I'm getting the same error

ERROR 2025-07-11T22:49:15 +4ms service=default providerID=github-copilot name=ProviderInitError message=ProviderInitError cause=ResolveMessage: Cannot find module '/home/adrian/.cache/opencode/node_modules/@ai-sdk/openai-compatible' from '/$bunfs/root/opencode' fatal
Error: Unexpected error, check log file at for more details

[iwinux]

It seems to be related to #863.

From network monitor I can see it hangs on request of registry.npmjs.org for 300s before making the real requests to LLM provider.

[nipuna-perera]

From network monitor I can see it hangs on request of registry.npmjs.org

This is a problem for people behind Enterprise firewalls. For example, we use artifactory as a package manager and our we have to pull node modules from artifactory.

Can opencode use the ~/.npmrc instead of hardcoding the registry? Then my local setup will work. Mason in neovim works fine with my current setup.

Yes this is why a pnpm install fixed the issue temporarly

My ~/.cache/opencode/package.json is empty {} so, doing pnpm or npm install is a noop.

[sudo-tee]

We also have artifactory at work and . The hard-coded registry is giving me issues as well as it returns a 403.. instead of hanging.

[iwinux]

Would be great if OpenCode offers an offline installer - no need to contact NPM registry at all.

[nipuna-perera]

I am working a PR to support local .npmrc. However, I am running into issues with the project. I'll reach out on Discord.

[nipuna-perera]

I just got a chance to test my fix on my actual work laptop and it worked well on my system :) 0.3.16 has the fix.