Sample dataset for demonstration. Solutions are community-contributed — apply at your own risk and check the verified version.
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Claude Code 1.0.6 – 1.0.888
Claude Code authentication: login loop after upgrade
$ Error: authentication required — token refresh failed (invalid_grant)
Auth / Login2128
Claude Code 1.0.x72
Claude Code: "claude: command not found" after npm install -g
$ claude: command not found
Install291
Claude Code 1.0.x61
Claude Code: npm EACCES permission denied on global install
$ npm error code EACCES — Error: EACCES: permission denied, mkdir '/usr/local/lib/node_modules'
Install276
Claude Code 1.0.x49
Claude Code: install fails on WSL (npm OS mismatch)
$ npm error notsup Unsupported platform — wanted {"os":"linux"} (current: {"os":"win32"})
Install263
Claude Code 1.0.7 – 1.0.947
Claude Code: permission denied writing to .claude/ on Windows
$ EPERM: operation not permitted, open 'C:\Users\...\.claude\config.json'
Install247
Claude Code 1.0.x45
Claude Code: "'claude' is not recognized" on Windows
$ 'claude' is not recognized as an internal or external command, operable program or batch file.
Install241
Claude Code 1.0.8 – 1.0.944
Claude Code: MCP tool call failed (timeout)
$ MCP tool call failed: request timed out after 60000ms
MCP / Plugins237
Claude Code 1.0.x39
Claude Code: login/network error behind proxy (self-signed cert)
$ Error: unable to get local issuer certificate / network request failed during login
Auth / Login236