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opentui: fatal: undefined is not an object (evaluating 'lines().length') #2813

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opened 2026-02-16 17:37:20 -05:00 by yindo · 3 comments
yindo commented 2026-02-16 17:37:20 -05:00
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Originally created by @haexyh on GitHub (Nov 12, 2025).

Originally assigned to: @rekram1-node on GitHub.

Description

TypeError: undefined is not an object (evaluating 'lines().length')
    at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1588:25)
    at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22)
    at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3)
    at readSignal (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:660:67)
    at <anonymous> (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:1508:36)
    at <anonymous> (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:1144:20)
    at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22)
    at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3)
    at createMemo (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:273:10)
    at untrack (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:475:12)
    at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22)
    at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3)
    at devComponent (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:593:3)
    at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1610:24)
    at render (src/cli/cmd/tui/routes/session/index.tsx:1639:14)
    at untrack (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:475:12)
    at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22)
    at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3)
    at createMemo (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:273:10)
    at untrack (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:475:12)
    at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22)
    at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3)
    at devComponent (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:593:3)
    at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1360:24)
    at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22)
    at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3)
    at runTop (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:833:7)
    at runQueue (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:904:42)
    at completeUpdates (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:860:84)
    at runUpdates (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:850:5)
    at setStore (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/store/dist/dev.js:221:5)
    at <anonymous> (src/cli/cmd/tui/context/sync.tsx:122:15)
    at emit (../../node_modules/.bun/@solid-primitives+event-bus@1.1.2+820208fac86deffb/node_modules/@solid-primitives/event-bus/dist/eventBus.js:6:13)
    at emit (../../node_modules/.bun/@solid-primitives+event-bus@1.1.2+820208fac86deffb/node_modules/@solid-primitives/event-bus/dist/emitter.js:92:20)
    at <anonymous> (src/cli/cmd/tui/context/sdk.tsx:25:17)
    at processTicksAndRejections (native:7:39)...

OpenCode version

No response

Steps to reproduce

  1. prompt
    optmize my opencode.json. I want to create good code that doesn't break. use the offical docs https://opencode.ai/docs/agents/

Screenshot and/or share link

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Operating System

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Terminal

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Originally created by @haexyh on GitHub (Nov 12, 2025). Originally assigned to: @rekram1-node on GitHub. ### Description ``` TypeError: undefined is not an object (evaluating 'lines().length') at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1588:25) at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22) at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3) at readSignal (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:660:67) at <anonymous> (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:1508:36) at <anonymous> (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:1144:20) at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22) at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3) at createMemo (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:273:10) at untrack (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:475:12) at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22) at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3) at devComponent (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:593:3) at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1610:24) at render (src/cli/cmd/tui/routes/session/index.tsx:1639:14) at untrack (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:475:12) at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22) at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3) at createMemo (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:273:10) at untrack (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:475:12) at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22) at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3) at devComponent (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:593:3) at <anonymous> (src/cli/cmd/tui/routes/session/index.tsx:1360:24) at runComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:742:22) at updateComputation (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:724:3) at runTop (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:833:7) at runQueue (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:904:42) at completeUpdates (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:860:84) at runUpdates (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/dist/dev.js:850:5) at setStore (../../node_modules/.bun/solid-js@1.9.9/node_modules/solid-js/store/dist/dev.js:221:5) at <anonymous> (src/cli/cmd/tui/context/sync.tsx:122:15) at emit (../../node_modules/.bun/@solid-primitives+event-bus@1.1.2+820208fac86deffb/node_modules/@solid-primitives/event-bus/dist/eventBus.js:6:13) at emit (../../node_modules/.bun/@solid-primitives+event-bus@1.1.2+820208fac86deffb/node_modules/@solid-primitives/event-bus/dist/emitter.js:92:20) at <anonymous> (src/cli/cmd/tui/context/sdk.tsx:25:17) at processTicksAndRejections (native:7:39)... ``` ### OpenCode version _No response_ ### Steps to reproduce 1. prompt optmize my opencode.json. I want to create good code that doesn't break. use the offical docs https://opencode.ai/docs/agents/ ### Screenshot and/or share link _No response_ ### Operating System _No response_ ### Terminal _No response_
yindo added the opentuibug labels 2026-02-16 17:37:20 -05:00
yindo commented 2026-02-16 17:37:21 -05:00
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@github-actions[bot] commented on GitHub (Nov 12, 2025):

This issue might be a duplicate of existing issues. Please check:

  • #4178: Same exact error "undefined is not an object (evaluating 'lines().length')" in src/cli/cmd/tui/routes/session/index.tsx
  • #4177: Identical error message and stack trace, also triggered when asking OpenCode to optimize config
  • #3934: Same error occurring in the same TUI session component
  • #3794: Similar "lines().length" error in the same file

Feel free to ignore if none of these address your specific case.

@github-actions[bot] commented on GitHub (Nov 12, 2025): This issue might be a duplicate of existing issues. Please check: - #4178: Same exact error "undefined is not an object (evaluating 'lines().length')" in src/cli/cmd/tui/routes/session/index.tsx - #4177: Identical error message and stack trace, also triggered when asking OpenCode to optimize config - #3934: Same error occurring in the same TUI session component - #3794: Similar "lines().length" error in the same file Feel free to ignore if none of these address your specific case.
yindo commented 2026-02-16 17:37:21 -05:00
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@rekram1-node commented on GitHub (Nov 12, 2025):

@haexyh what version of opencode are u using

@rekram1-node commented on GitHub (Nov 12, 2025): @haexyh what version of opencode are u using
yindo commented 2026-02-16 17:37:21 -05:00
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@haexyh commented on GitHub (Nov 12, 2025):

1.0.61

@haexyh commented on GitHub (Nov 12, 2025): 1.0.61
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Reference: anomalyco/opencode#2813
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