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Opencode errors on asking a question #7674
Description
Description
Hello I just installed opencode, but when asking a question the model thinks for a little while and then proceeds to error with the following logs. I have attempted to use Big Pickle as well as GLM-4.7 but I get the same error.
Sadly I'm not really getting much information from this specific error, on what might be going on under the hood so if anyone can assist me with further diagnosing the issue, I would be very thankful.
INFO 2026-01-10T17:41:22 +0ms service=lsp file=/home/Dennis/Documents/Code/generic_messenger/record/src/main.rs touching file
INFO 2026-01-10T17:41:22 +0ms service=file.time sessionID=ses_4570cf5f8ffejJlSr9rEM33RxA file=/home/Dennis/Documents/Code/generic_messenger/record/src/main.rs read
INFO 2026-01-10T17:41:22 +1ms service=bus type=message.part.updated publishing
INFO 2026-01-10T17:41:22 +135ms service=bus type=message.part.updated publishing
INFO 2026-01-10T17:41:22 +4ms service=snapshot hash=45900e3f3a10439fb22c16b0ce058e46404e33f3
cwd=/home/Dennis/Documents/Code/generic_messenger git=/home/Dennis/.local/share/opencode/snapshot/4e7c501e60ab180464400dc33e0081ce75292d61 tracking
ERROR 2026-01-10T17:41:22 +0ms service=session.processor error=[
{
"code": "invalid_union",
"errors": [
[
{
"expected": "string",
"code": "invalid_type",
"path": [
"reason"
],
"message": "Invalid input: expected string, received object"
}
],
[
{
"expected": "object",
"code": "invalid_type",
"path": [
"part"
],
"message": "Invalid input: expected object, received undefined"
},
{
"expected": "string",
"code": "invalid_type",
"path": [
"delta"
],
"message": "Invalid input: expected string, received undefined"
}
],
[
{
"expected": "object",
"code": "invalid_type",
"path": [
"part"
],
"message": "Invalid input: expected object, received undefined"
},
{
"expected": "string",
"code": "invalid_type",
"path": [
"delta"
],
"message": "Invalid input: expected string, received undefined"
}
]
],
"path": [],
"message": "Invalid input"
}
] process
INFO 2026-01-10T17:41:22 +0ms service=bus type=session.error publishing
INFO 2026-01-10T17:41:22 +1ms service=session.prompt sessionID=ses_4570cf5f8ffejJlSr9rEM33RxA cancel
Plugins
None
OpenCode version
1.0.105
Steps to reproduce
Ask any question
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No response
Operating System
Linux (NixOS 25.11.20251229.89dbf01 (Xantusia) x86_64)
Terminal
Kitty with nushell
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github-actions commentedon Jan 10, 2026
This issue might be a duplicate of existing issues. Please check:
The error signature matches exactly - both show the same invalid_union validation error with 'reason', 'part', and 'delta' fields. Feel free to ignore if your specific case differs.
github-actions commentedon Mar 25, 2026
To stay organized issues are automatically closed after 90 days of no activity. If the issue is still relevant please open a new one.