No GitHub token provided: set SOURCECRED_GITHUB_TOKEN

[lcy020625]

C:\WINDOWS\system32>yarn sourcecred graph
yarn run v1.22.19
$ C:\WINDOWS\system32\node_modules.bin\sourcecred graph
GO graph
GO reference detector for sourcecred/discourse
DONE reference detector for sourcecred/discourse: 17ms
GO reference detector for sourcecred/discord
DONE reference detector for sourcecred/discord: 1ms
GO reference detector for sourcecred/github
Error: No GitHub token provided: set SOURCECRED_GITHUB_TOKEN
at getTokenFromEnv (webpack:///./src/plugins/github/plugin.js?:24:439)
at GithubPlugin.referenceDetector (webpack:///./src/plugins/github/plugin.js?:25:964)
at graph (webpack:///./src/api/main/graph.js?:18:176)
at async graphCommand (webpack:///./src/cli/graph.js?:13:1375)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.