{"record":{"id":"3d592649f8a2a08c","repo":"stride3d/stride","slug":"path-path-cannot-be-resolved-to-a-provider","errorCode":null,"errorMessage":"path [{path}] cannot be resolved to a provider.","messagePattern":"path \\[(.+?)\\] cannot be resolved to a provider\\.","errorType":"exception","errorClass":"InvalidOperationException","httpStatus":null,"severity":"error","filePath":"sources/core/Stride.Core.IO/VirtualFileSystem.cs","lineNumber":510,"sourceCode":"                result.Append(DirectorySeparatorChar);\n        }\n\n        return result.ToString();\n    }\n\n    /// <summary>\n    /// Resolves the virtual file provider for a given path.\n    /// </summary>\n    /// <param name=\"path\">The path.</param>\n    /// <param name=\"resolveTop\">if set to <c>true</c> [resolve top].</param>\n    /// <returns>The virtual file system provider and local path in it.</returns>\n    /// <exception cref=\"InvalidOperationException\">path cannot be resolved to a provider.</exception>\n    public static ResolveProviderResult ResolveProvider(string path, bool resolveTop)\n    {\n        ArgumentNullException.ThrowIfNull(path);\n        var result = ResolveProviderUnsafe(path, resolveTop);\n        if (result.Provider == null)\n            throw new InvalidOperationException($\"path [{path}] cannot be resolved to a provider.\");\n        return result;\n    }\n\n    private static int LastIndexOfDirectorySeparator(string path)\n    {\n        int length = path.Length;\n        while (--length >= 0)\n        {\n            var c = path[length];\n            if (c == DirectorySeparatorChar || c == AltDirectorySeparatorChar)\n            {\n                return length;\n            }\n        }\n        return -1;\n    }\n\n    public static ResolveProviderResult ResolveProviderUnsafe(string path, bool resolveTop)","sourceCodeStart":492,"sourceCodeEnd":528,"githubUrl":"https://github.com/stride3d/stride/blob/96fad776d210c221682aac1ccdf4c79dc046fc38/sources/core/Stride.Core.IO/VirtualFileSystem.cs#L492-L528","documentation":"ResolveProvider walks registered virtual file providers to find one whose RootPath matches (or is the longest prefix of) the given path. If ResolveProviderUnsafe yields no provider, this InvalidOperationException is thrown because the path cannot be mapped to any mounted provider.","triggerScenarios":"Calling ResolveProvider (directly or via file APIs like result/sourceResult/destinationResult helpers) with a path whose root does not match any registered provider, e.g. \"/missing/files/a.bin\" when no provider is mounted at \"/missing\" or the root \"/\" provider is absent; or before RegisterProvider ran for that mount.","commonSituations":"Typos in mount root names; accessing virtual files before engine/service initialization registered providers; paths with wrong casing or missing leading '/'; tests that never set up the asset provider.","solutions":["Verify the provider for the path's root is registered (VirtualFileSystem.GetProvider) before calling.","Ensure initialization code (RegisterProvider calls) has run before any file operations.","Check the path prefix/spelling against the registered providers' RootPath values.","Use ResolveProviderUnsafe if you need to handle the missing-provider case without an exception."],"exampleFix":"// before\nvar resolved = VirtualFileSystem.ResolveProvider(path, true); // throws\n// after\nvar unsafeResult = VirtualFileSystem.ResolveProviderUnsafe(path, true);\nif (unsafeResult.Provider == null)\n    throw new InvalidOperationException($\"No provider mounted for {path}; check RegisterProvider calls.\");\nvar resolved = VirtualFileSystem.ResolveProvider(path, true);","handlingStrategy":"validation","validationCode":"var probe = VirtualFileSystem.ResolveProviderUnsafe(path, true);\nif (probe.Provider == null)\n    throw new InvalidOperationException($\"No provider mounted for '{path}'. Register providers first.\");","typeGuard":null,"tryCatchPattern":"try { var r = VirtualFileSystem.ResolveProvider(path, true); }\ncatch (InvalidOperationException ex) { logger.LogWarning(ex, \"Unresolved VFS path {Path}\", path); return null; }","preventionTips":["Run engine/service initialization before any virtual file access","Keep a list of registered root paths and validate user paths against it","Prefer ResolveProviderUnsafe when absence is expected"],"tags":["filesystem","dotnet","virtual-filesystem"],"backgroundTag":"resource-not-found","analyzedSha":"96fad776d210c221682aac1ccdf4c79dc046fc38","analyzedAt":"2026-09-14T02:59:31.279Z","contentChangedAt":"2026-09-14T02:59:31.279Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}