Error cards
One page per error string, written so that a search for the text you just saw lands here. Each card: symptom → when it applies → first check → fix → success check → sources → next split → investigation trail → retests → status. The canonical files are wiki/errors/*.md in the agent-stars repository on GitHub; this site mirrors them.
Repository (正本): github.com/michielinksee/agent-stars/wiki/errors
mcp-runtime
- Windows: Claude Desktop MCP server configured with npx does not start — tools not shown and no mcp-server-<name>.log in the logs folder
client-na-na-windows-npx-mcp-silentenvironments: Claude Desktopstdiostatus:unverifiedsources: 4
kansei-link
- HTTP 406 {"jsonrpc":"2.0","error":{"code":-32000,"message":"Not Acceptable: Client must accept both application/json and text/event-stream"},"id":null}
mcp-406-na-kansei-link-initialize-acceptenvironments: Claude Code, Codex, otherstreamable-httpstatus:livedsources: 4
notion
- Notion hosted MCP (mcp.notion.com) times out / 504 Gateway Timeout when querying a large database (thousands of rows, formula columns)
mcp-504-na-notion-hosted-large-database-timeoutenvironments: Claude Desktop, Claude Code, Cursor, otherstreamable-httpstatus:unverifiedsources: 6
atlassian-atlassian-mcp-server
- Failed to convert markdown to adf (editJiraIssue, Atlassian Rovo MCP server)
mcp-na-na-atlassian-failed-to-convert-markdown-to-adfenvironments: Claude Desktop, Claude Code, Cursor, otherstreamable-httpstatus:extracted_from_issuesources: 4
freee
- freee_api_get error: company_id differs from the current company — use freee_set_current_company
mcp-na-na-freee-current-company-mismatchenvironments: Claude Codestdiostatus:livedsources: 3 - 403 forbiddenError このアプリケーションにはアクセス権限がないエンドポイントです
rest-403-forbiddenError-freee-invoicesenvironments: Claude Codereststatus:livedsources: 4
square
- Square MCP: developer docs say https://mcp.squareup.com/mcp but the GitHub README and MCP directories say /sse
mcp-na-na-square-mcp-vs-sse-endpointenvironments: Claude Desktop, Claude Code, Cursor, otherstreamable-httpstatus:unverifiedsources: 4
moneyforward
- Money Forward Cloud API: access token expires every time (401) — how to refresh, and how long does the refresh token itself last?
oauth-401-na-moneyforward-refresh-token-rotationenvironments: Claude Code, Codex, otherreststatus:unverifiedsources: 4
github
- Resource not accessible by personal access token (GitHub MCP server with a fine-grained PAT) — which repository permissions does each tool need?
rest-403-na-github-mcp-fine-grained-pat-permissionsenvironments: Cursor, Claude Code, Claude Desktop, otherstreamable-httpstatus:unverifiedsources: 6
kintone
- HTTP 520 {"code":"CB_IL02","message":"不正なリクエストです。"} (kintone REST API, GET)
rest-520-CB_IL02-kintone-get-content-typeenvironments: Claude Desktop, Claude Code, Cursor, Codex, otherreststatus:extracted_from_issuesources: 3
backlog
- BACKLOG_API_KEY is required (nulab/backlog-mcp-server) — where is the Backlog API key issued, and does it need a space administrator?
rest-na-na-backlog-api-key-screenenvironments: Claude Desktop, Claude Code, Cursor, otherstdiostatus:extracted_from_issuesources: 5
chatwork
- CHATWORK_API_TOKEN (chatwork-mcp-server) — where in the Chatwork UI is the API token issued, and does the organization administrator have to approve it?
rest-na-na-chatwork-api-token-screenenvironments: Claude Desktop, Claude Code, Cursor, otherstdiostatus:extracted_from_issuesources: 5
Cards never state rates or rankings. lived / verified are evidence; unverified / extracted_from_issue are leads and never affect grades.