anomalyco / anomalyco/opencode

opencode2 failed to run, "not a valid application for this OS platform"

Open
#41,254 1 comment 0 reactions 1 assignee View on GitHub

@Hona is already working on this.

Since Aug 8, 2026.

2.0
Dominant language
TypeScript
Stars
209k
Forks
27.5k
PR merge metrics
PR metrics pending

Description

Description

Yesterday I installed opencode2 on my windows machine and used it for an hour without any problem.
Today I wanted to boot it up again but it wont start, and answered with this error :

PS C:\Users\Arthur\Documents\GIT\SYNTH_01>opencode2
Starting background server...
[12:44:36.309] ERROR (#1): Error: Failed to start server
at ~effect/Utils/internal (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/Utils.js:89:16)
at (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:727:19)
at runLoop (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:461:98)
at evaluate (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:421:23)
at (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:774:15)
at processTicksAndRejections (unknown:7:39)
at service.ensure (src/services/server-connection.ts:69:53)
at service.ensure (definition) (../client/src/effect/service.ts:54:30)
at cli.server-connection.resolve (src/commands/handlers/default.ts:22:44)
at cli.server-connection.resolve (definition) (src/services/server-connection.ts:21:34) {
[cause]: Error: EUNKNOWN: unknown error, uv_spawn
at spawn (unknown)
at spawn (node:child_process:679:35)
at spawn (node:child_process:14:39)
at try (../client/src/effect/service.ts:71:23)
at ~effect/Utils/internal (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/Utils.js:89:16)
at (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:725:22)
at runLoop (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:461:98)
at evaluate (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:421:23)
at (../../node_modules/.bun/effect@4.0.0-beta.101/node_modules/effect/dist/internal/effect.js:774:15)
at processTicksAndRejections (unknown:7:39)

I couldnt make it start until I ran the npm installation command again : npm install -g @opencode-ai/cli@next
pp

Plugins

no plugins.

OpenCode version

0.0.0-next-17028

Steps to reproduce

No response

Screenshot and/or share link

No response

Operating System

Windows 11

Terminal

Windows terminal with psmux

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Assessment

This issue has not been assessed yet.

Get new issues in your inbox

A short digest of beginner-friendly GitHub issues.