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opentui: fatal: undefined is not an object (evaluating 'input.setText') #7771
Description
Description
TypeError: undefined is not an object (evaluating 'input.setText')
at set (src/cli/cmd/tui/component/prompt/index.tsx:412:7)
at ref (src/cli/cmd/tui/routes/session/index.tsx:1055:21)
at Prompt (src/cli/cmd/tui/component/prompt/index.tsx:398:9)
at untrack (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:475:12)
at runComputation (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:742:22)
at updateComputation (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:724:3)
at devComponent (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:593:3)
at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1046:29)
at children (src/cli/cmd/tui/routes/session/index.tsx:1068:20)
at <anonymous> (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:1531:21)
at runComputation (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:742:22)
at updateComputation (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:724:3)
at runTop (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:833:7)
at runQueue (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:904:42)
at completeUpdates (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:860:84)
at runUpdates (../../node_modules/.bun/[email protected]/node_modules/solid-js/dist/dev.js:850:5)
at setStore (../../node_modules/.bun/[email protected]/node_modules/solid-js/store/dist/dev.js:221:5)
at sync (src/cli/cmd/tui/context/sync.tsx:304:11)
at processTicksAndRejections (native:7:39)...
Plugins
None
OpenCode version
1.1.12
Steps to reproduce
This happened while forking a session of a Plan. This was the first prompt, and the plan was running. I wanted to fork to another session, to make another model plan the same thing.
Screenshot and/or share link
No response
Operating System
macOS Tahoe
Terminal
Ghostty
Activity
github-actions commentedon Jan 11, 2026
This issue might be a duplicate of existing issues related to the prompt component and TUI crashes. Please check:
These all show similar "undefined is not an object" errors in the prompt component (src/cli/cmd/tui/component/prompt/index.tsx), though with different expressions being evaluated. The pattern suggests a common underlying issue with component state or ref initialization in the prompt component.
Feel free to ignore if your specific case (forking a session during plan execution) has a unique cause, but these issues may share the same root cause.
rekram1-node commentedon Jan 12, 2026
Release going out now