{"record":{"id":"55e4ad17e2cf4ea6","repo":"git-ecosystem/git-credential-manager","slug":"unable-to-detect-host-provider-without-a-remote-ur","errorCode":null,"errorMessage":"Unable to detect host provider without a remote URL","messagePattern":"Unable to detect host provider without a remote URL","errorType":"exception","errorClass":"Trace2Exception","httpStatus":null,"severity":"error","filePath":"src/Core/HostProviderRegistry.cs","lineNumber":155,"sourceCode":"                        _context.Console.WriteWarning($\"a supported authority override was set but no such provider supporting authority '{authority}' was found. Falling back to auto-detection.\");\n                    }\n                    else\n                    {\n                        return provider;\n                    }\n                }\n            }\n\n            //\n            // Auto-detection\n            // Perform auto-detection network probe and remember the result\n            //\n            _context.Trace.WriteLine(\"Performing auto-detection of host provider.\");\n\n            var uri = request.GetRemoteUri();\n            if (uri is null)\n            {\n                throw new Trace2Exception(_context.Trace2, \"Unable to detect host provider without a remote URL\");\n            }\n\n            // We can only probe HTTP(S) URLs - for SMTP, IMAP, etc we cannot do network probing\n            bool canProbeUri = StringComparer.OrdinalIgnoreCase.Equals(uri.Scheme, \"http\") ||\n                               StringComparer.OrdinalIgnoreCase.Equals(uri.Scheme, \"https\");\n\n            var probeTimeout = TimeSpan.FromMilliseconds(_context.Settings.AutoDetectProviderTimeout);\n            _context.Trace.WriteLine($\"Auto-detect probe timeout is {probeTimeout.TotalSeconds} ms.\");\n\n            HttpResponseMessage probeResponse = null;\n\n            async Task<IHostProvider> MatchProviderAsync(HostProviderPriority priority, bool probe)\n            {\n                if (_hostProviders.TryGetValue(priority, out ICollection<IHostProvider> providers))\n                {\n                    _context.Trace.WriteLine($\"Checking against {providers.Count} host providers registered with priority '{priority}'.\");\n\n                    // Try matching using the static Git request arguments first (cheap)","sourceCodeStart":137,"sourceCodeEnd":173,"githubUrl":"https://github.com/git-ecosystem/git-credential-manager/blob/e8ce762cd04b4100ae637b5fbf39ef9d0a96561e/src/Core/HostProviderRegistry.cs#L137-L173","documentation":"During auto-detection, HostProviderRegistry.GetProviderAsync resolves the remote URI from the request; if there is no remote URL it cannot probe or match any host provider and throws this Trace2Exception. Auto-detection is inherently URL-driven, so a null remote URI is an unrecoverable input error.","triggerScenarios":"Calling GetProviderAsync with an InputArguments/request that lacks a remote URL — e.g. request.GetRemoteUri() returns null because no host, protocol, or path values were supplied (get operations without a remote configured).","commonSituations":"git credential fill invoked for a repository with no 'origin' remote, credential requests where url/protocol+host keys were stripped, or embedded usage of GCM without populating remote fields.","solutions":["Ensure the git repository has a valid remote: git remote add origin <url>","When calling GCM programmatically, populate the request's remote URL (protocol + host) before requesting a provider","Register an explicit host provider instead of relying on auto-detection when no remote URL is available","Verify which credential operation is running; some flows (e.g. erase) may legitimately lack a URL and need different handling"],"exampleFix":"// before\nvar provider = await registry.GetProviderAsync(input); // input has no url\n// after\nif (input.GetRemoteUri() is null)\n    input.Protocol = \"https\"; input.Host = \"git.example.com\"; // or fail earlier with a clear message\nvar provider = await registry.GetProviderAsync(input);","handlingStrategy":"validation","validationCode":"if (input.TryGetRemoteUri(out var uri) == false || uri is null)\n    throw new InvalidOperationException(\"No remote URL available; set url or protocol+host before requesting a provider\");","typeGuard":"bool HasRemoteUrl(InputArguments input) => input.TryGetRemoteUri(out var uri) && uri != null;","tryCatchPattern":"try\n{\n    var provider = await registry.GetProviderAsync(input);\n}\ncatch (Trace2Exception ex) when (ex.Message.Contains(\"without a remote URL\"))\n{\n    logger.LogError(\"Credential request lacked a remote URL; check git remote configuration\");\n}","preventionTips":["Ensure the repo has a configured remote (git remote -v) before credential operations","Populate InputArguments.Url (or Protocol+Host) when calling GCM programmatically","Register an explicit provider for flows known to lack a remote URL"],"tags":["host-provider","auto-detection","missing-url","git"],"backgroundTag":"missing-required-argument","analyzedSha":"e8ce762cd04b4100ae637b5fbf39ef9d0a96561e","analyzedAt":"2026-09-11T17:15:08.753Z","contentChangedAt":"2026-09-11T17:15:08.753Z","schemaVersion":2},"datasetVersion":"2026-09-16T09:17:16.951Z"}