{"record":{"id":"34e4ff56e9207ce5","repo":"pcottle/learnGitBranching","slug":"fatal-no-tags-found-cannot-describe-anything","errorCode":null,"errorMessage":"fatal: No tags found, cannot describe anything.","messagePattern":"fatal: No tags found, cannot describe anything\\.","errorType":"exception","errorClass":"GitError","httpStatus":null,"severity":"error","filePath":"src/js/git/commands.js","lineNumber":1050,"sourceCode":"      }\n\n      engine.push({\n        // NOTE -- very important! destination and source here\n        // are always, always strings. very important :D\n        destination: destination,\n        source: source,\n        force: force\n      });\n    }\n  },\n\n  describe: {\n    regex: /^git +describe($|\\s)/,\n    description: 'Give an object a human readable name',\n    execute: function(engine, command) {\n      // first if there are no tags, we can't do anything so just throw\n      if (engine.tagCollection.toArray().length === 0) {\n        throw new GitError({\n          msg: intl.todo(\n            'fatal: No tags found, cannot describe anything.'\n          )\n        });\n      }\n\n      var generalArgs = command.getGeneralArgs();\n      command.oneArgImpliedHead(generalArgs);\n      assertIsRef(engine, generalArgs[0]);\n\n      engine.describe(generalArgs[0]);\n    }\n  },\n\n  tag: {\n    regex: /^git +tag($|\\s)/,\n    description: 'Create, list, or delete tag references',\n    options: [","sourceCodeStart":1032,"sourceCodeEnd":1068,"githubUrl":"https://github.com/pcottle/learnGitBranching/blob/5b09d0ff9678cad164f5a7488a279a44f90d7256/src/js/git/commands.js#L1032-L1068","documentation":"`git describe` names a commit relative to the nearest tag. If the repository has zero tags (engine.tagCollection empty), there is nothing to describe against and the command fails immediately, mirroring git's fatal message.","triggerScenarios":"Running `git describe` (any variant) in a tree where no `git tag` command has ever created a tag.","commonSituations":"Fresh sandbox or early levels that never introduce tags; users exploring describe before learning tag.","solutions":["Create a tag first: `git tag v1` then `git describe`","Checkout/switch to a commit reachable from an existing tag","If scripting, check engine.tagCollection.toArray().length before calling describe"],"exampleFix":"// before\ngit describe\n// after\ngit tag v1\ngit describe","handlingStrategy":"validation","validationCode":"if (engine.tagCollection.toArray().length > 0) { /* describe ok */ }","typeGuard":null,"tryCatchPattern":null,"preventionTips":["Create at least one tag before demonstrating describe","Guard scripts with a tag-count check","Teach tag before describe in curricula"],"tags":["git","describe","tags"],"backgroundTag":"git-no-tags-in-repo","analyzedSha":"5b09d0ff9678cad164f5a7488a279a44f90d7256","analyzedAt":"2026-08-27T13:53:49.057Z","schemaVersion":2},"datasetVersion":"2026-08-27T19:17:21.184Z"}