{"record":{"id":"e3c374f88c7a96b7","repo":"angular/angular-cli","slug":"could-not-parse-location-from-specifier-specifi","errorCode":null,"errorMessage":"Could not parse location from specifier: ${specifier}","messagePattern":"Could not parse location from specifier: (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/angular/cli/src/package-managers/package-manager.ts","lineNumber":611,"sourceCode":"        }\n\n        return this.getRegistryManifest(name, versionSpec, options);\n      }\n      case 'directory': {\n        if (!fetchSpec) {\n          throw new Error(`Could not parse directory path from specifier: ${specifier}`);\n        }\n\n        const manifestPath = join(fetchSpec, 'package.json');\n        const manifest = await this.host.readFile(manifestPath);\n\n        return JSON.parse(manifest);\n      }\n      case 'file':\n      case 'remote':\n      case 'git': {\n        if (!fetchSpec) {\n          throw new Error(`Could not parse location from specifier: ${specifier}`);\n        }\n\n        // Caching is not supported for non-registry specifiers.\n        const { workingDirectory, cleanup } = await this.acquireTempPackage(fetchSpec, {\n          ...options,\n          ignoreScripts: true,\n        });\n\n        try {\n          // Discover the package name by reading the temporary `package.json` file.\n          // The package manager will have added the package to the `dependencies`.\n          const tempManifest = await this.host.readFile(join(workingDirectory, 'package.json'));\n          const { dependencies } = JSON.parse(tempManifest) as PackageManifest;\n          const packageName = dependencies && Object.keys(dependencies)[0];\n\n          if (!packageName) {\n            throw new Error(`Could not determine package name for specifier: ${specifier}`);\n          }","sourceCodeStart":593,"sourceCodeEnd":629,"githubUrl":"https://github.com/angular/angular-cli/blob/bb72145f9ab45aee29f523236b3a25cd0813a841/packages/angular/cli/src/package-managers/package-manager.ts#L593-L629","documentation":"Thrown by PackageManager.getManifest when the specifier resolves via npm-package-arg (npa) to type 'file', 'remote', or 'git' but has no fetchSpec, meaning no concrete location (file path, tarball URL, or git URL) could be extracted from the input string. The CLI needs that location to install the package into a temporary directory and read its manifest.","triggerScenarios":"Calling getManifest with a malformed file/remote/git specifier such as an empty tarball URL, a bare 'git+...' string without a URL, or a manually constructed npa.Result where fetchSpec is undefined/null.","commonSituations":"Hand-editing package specifiers in ng update/add workflows, passing a git shorthand with a typo (e.g. 'github:user/repo' with a missing repo), copying a specifier that lost its URL part, or programmatic tooling building specifier objects incorrectly.","solutions":["Check the specifier string for typos or missing URL/path portions and re-run with a complete specifier (e.g. 'https://.../pkg.tgz', 'git+https://github.com/user/repo.git', or an existing file path).","If constructing an npa.Result manually, ensure fetchSpec is populated before calling getManifest.","Use a registry range/version/tag specifier (e.g. 'pkg@^1.2.3') instead if a file/remote/git source is not strictly required.","Validate the specifier with npa() beforehand and assert the resolved type and fetchSpec are present."],"exampleFix":"// before\nawait pm.getManifest('git+ssh://'); // no repo URL -> throws\n// after\nawait pm.getManifest('git+https://github.com/angular/angular-cli.git');","handlingStrategy":"validation","validationCode":"import npa from 'npm-package-arg';\nconst r = npa(specifier);\nif (['file', 'remote', 'git'].includes(r.type) && !r.fetchSpec) {\n  throw new Error(`Specifier '${specifier}' of type '${r.type}' has no fetchSpec`);\n}\nawait pm.getManifest(specifier);","typeGuard":"function hasFetchSpec(r: npa.Result): r is npa.Result & { fetchSpec: string } {\n  return typeof r.fetchSpec === 'string' && r.fetchSpec.length > 0;\n}","tryCatchPattern":"try {\n  const manifest = await pm.getManifest(specifier);\n} catch (err) {\n  if ((err as Error).message.startsWith('Could not parse location from specifier')) {\n    logger.error(`Invalid specifier '${specifier}': provide a full path/URL`);\n  } else throw err;\n}","preventionTips":["Validate specifiers with npa() before passing them to getManifest","Prefer registry range/tag specifiers unless a file/git source is required","Copy full URLs/paths — truncated 'git+' or bare tarball hosts are the usual culprit","Add a unit test covering every specifier form your tooling generates"],"tags":["package-manager","specifier-parsing","npm"],"backgroundTag":"invalid-package-specifier","analyzedSha":"bb72145f9ab45aee29f523236b3a25cd0813a841","analyzedAt":"2026-08-30T02:47:34.745Z","schemaVersion":2},"datasetVersion":"2026-08-30T03:17:51.788Z"}