Aider error
Aider: OllamaError: Error getting model info for ollama/qwen2.5-coder:32b
OllamaError: Error getting model info for ollama/qwen2.5-coder:32b. Set Ollama API Base via `OLLAMA_API_BASE` environment variable. Error: [Errno 61] Connection refusedStatus: WorkaroundLast verified 2 documented fixes2 sources
What it means
Aider could not reach your Ollama server to fetch model info. The maintainer said aider used to swallow this Ollama exception, which showed up only as an "Unknown context window size" warning, and changed it to surface the error.
Causes
- The Ollama server is not running, or OLLAMA_API_BASE is not set (maintainer, issue #2318: "You need to have your Ollama server running and your api base set.").
How to fix it
- Fix 1.
Start the Ollama server. The docs show starting it with an 8k context window.
TOMLOLLAMA_CONTEXT_LENGTH=8192 ollama serve - Fix 2.
Set the API base.
Terminalexport OLLAMA_API_BASE=http://127.0.0.1:11434 # Mac/Linux setx OLLAMA_API_BASE http://127.0.0.1:11434 # Windows, restart shell after setx
More Aider errors
All 17 Aider errorsThe LLM did not conform to the edit format.Status: WorkaroundSearchReplaceNoExactMatch: This SEARCH block failed to exactly match lines in {path}Status: WorkaroundModel gpt-3.5-turbo has hit a token limit!Status: WorkaroundModel foobar: Unknown context window size and costs, using sane defaults.Status: By designModel azure/gpt-4-turbo: Missing these environment variables:Status: By designaider: The term 'aider' is not recognized as a name of a cmdlet, function, script file, or executable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.Status: Workaroundaider-chat 0.23.0 requires somepackage==X.Y.Z, but you have somepackage U.W.V which is incompatible.Status: WorkaroundThe API provider is not able to authenticate you. Check your API key.Status: By design
Related reading
- Aider vs Claude Code in 2026: Git-First Open Source vs Subagent RuntimeAider vs Claude Code: git-first, model-agnostic Aider against the Claude Code runtime of subagents and hooks. Compare architecture, cost, governance and fit.
- Aider vs Claude Code: Open Source vs Commercial AI Coding CLIAider is open source and works with any model. Claude Code is Anthropic's commercial agent. Here is how they compare for TypeScript.
FAQ
What does "OllamaError: Error getting model info for ollama/qwen2.5-coder:32b" mean in Aider?
Aider could not reach your Ollama server to fetch model info. The maintainer said aider used to swallow this Ollama exception, which showed up only as an "Unknown context window size" warning, and changed it to surface the error.
How do I fix "OllamaError: Error getting model info for ollama/qwen2.5-coder:32b"?
There are 2 documented fixes. Start with the first: Start the Ollama server. The docs show starting it with an 8k context window.
Is this Aider error fixed?
Status: Workaround. No release removes the cause. The documented fixes work around it. Affected versions: Surfaced explicitly since the Nov 2024 change in issue #2318.
Sources
Last verified against 2 sources: official docs, maintainer replies and release notes.
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