Ollama llama.cpp Errors: A Quick Lookup of Exact Messages and Fixes (2026)
A quick lookup of Ollama and llama.cpp error messages, grouped by pulling, loading and starting. Each row gives the exact text, the likely cause, whether we tested it, and a…
BUFFER’S NOTEBOOK
Category: Fixes
42 articles
Page 2
Exact error messages from Claude Code, Codex, Ollama and AI APIs, what they mean, and the fix I tested. Start with the Claude Code error lookup.
OpenAI Codex Error Codes: A Quick Lookup for API, ChatGPT and Codex Messages (2026)
A quick lookup of OpenAI API, ChatGPT and Codex error messages. Each row gives the exact text, the likely cause in one line, where that answer comes from, and a…
Claude Code auto mode temporarily unavailable: What It Means and 5 Easy Fixes (Tested)
Claude Code auto mode temporarily unavailable means the classifier model that checks actions in auto mode did not answer, so the action was skipped. We reproduced it on Claude Code…
Ollama “Downloaded in a Format That Is No Longer Supported”: A Confusing Error, Clearly Fixed
Since Ollama 0.40.4, /v1/systemone refuses decision models in a format that is no longer supported. Official models like nimble, tev1 and clef just need a fresh ollama pull. Third-party GGUF…
Claude Code monthly spend limit: Fix “You’ve hit your monthly spend limit” Fast (Tested)
Claude Code monthly spend limit means your plan usage ran out and your usage credits hit their monthly cap. We tested the message family on Claude Code 2.1.312 with a…
Ollama “pull model manifest: 412”: The Simple Fix, and Why Upgrading Is Not Always Enough
Ollama shows "Error: pull model manifest: 412" when the model you are pulling needs a newer Ollama than the one you run. Upgrade the official way, then check with ollama…
Ollama “unknown model architecture”: The Frustrating Error Explained, With Real Fixes (2026)
Ollama shows "error loading model: unknown model architecture" when the model file uses an architecture its bundled llama.cpp does not know yet. Upgrade Ollama, use the library version, or run…
Claude Code API Error 401 OAuth token has expired: 5 Proven Fixes (Tested)
Claude Code API Error 401 OAuth token has expired means the login token expired and the automatic refresh failed. We reproduced it on Claude Code 2.1.312 with a mock API…
“Codex could not start its user interface” in VS Code: The Frustrating Bug and the Rollback That Works (2026)
"Codex could not start its user interface" appeared for many VS Code users after the Codex extension updated to 26.1021.22027. The GitHub issue is still open with no reply from…
Claude Code Prompt is too long: What It Means and 6 Simple Fixes (Tested)
Claude Code Prompt is too long means the request, including system prompt, tools and CLAUDE.md, is bigger than the model's context window. We reproduced the variants on Claude Code 2.1.312…
OpenAI API 403 “Country, region, or territory not supported”: The Honest Answer and What to Check (2026)
The OpenAI API returns 403 "Country, region, or territory not supported" when a request comes from a country or territory that is not on OpenAI's supported list. A new key…
OpenAI 401 “Incorrect API key provided”: The Official 3-Step Fix, Tested (2026)
OpenAI returns 401 "Incorrect API key provided" when the key your request sends is wrong: a typo, a deleted key, or a key from another organization or project. OpenAI's fix…