{"record":{"id":"4f6e74b4e3b5ab82","repo":"sveltejs/kit","slug":"missing-params-for-dynamic-route-id-id-4f6e74","errorCode":null,"errorMessage":"Missing params for dynamic route ID ${id}","messagePattern":"Missing params for dynamic route ID (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/kit/src/runtime/app/paths/server.js","lineNumber":33,"sourceCode":"\tif (file[0] === '/') {\n\t\tif (DEV) {\n\t\t\tconsole.warn(`\\`asset('${file}')\\` should now be \\`asset('${file.slice(1)}')\\``);\n\t\t}\n\n\t\tfile = file.slice(1);\n\t}\n\n\treturn assets !== base ? `${assets}/${file}` : resolve(file);\n}\n\n/** @type {typeof import('./client.js').resolve} */\nexport function resolve(id, params) {\n\tlet resolved;\n\n\tif (id[0] === '/') {\n\t\t// route ID\n\t\tif (id.includes('[') && !params) {\n\t\t\tthrow new Error(`Missing params for dynamic route ID ${id}`);\n\t\t}\n\n\t\tresolved = resolve_route(id, params ?? {});\n\t} else {\n\t\tresolved = '/' + id;\n\t}\n\n\tif (relative) {\n\t\tconst store = try_get_request_store();\n\n\t\tif (store && !store.state.prerendering?.fallback) {\n\t\t\t// the relative path depth must reflect the URL the browser is actually at, which\n\t\t\t// for a data request includes the `__data.json` suffix that was stripped during routing\n\t\t\tconst pathname = store.event.isDataRequest\n\t\t\t\t? add_data_suffix(store.event.url.pathname)\n\t\t\t\t: store.event.url.pathname;\n\t\t\tconst after_base = pathname.slice(base.length);\n\t\t\tconst segments = after_base.split('/').slice(2);","sourceCodeStart":15,"sourceCodeEnd":51,"githubUrl":"https://github.com/sveltejs/kit/blob/03f1687fe612ce3d2d9131139b5b188d9cf90c64/packages/kit/src/runtime/app/paths/server.js#L15-L51","documentation":"Runtime guard in the resolve() helper of $app/paths: the caller passed a route ID (leading '/') containing a dynamic parameter bracket but no params object, so the dynamic segments cannot be filled in. Fires at runtime when calling resolve/asset with a parameterized route id like '/blog/[slug]' without supplying { slug: ... }.","triggerScenarios":"Thrown at packages/kit/src/runtime/app/paths/server.js:33 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Pass a params object as the second argument, e.g. resolve('/blog/[slug]', { slug })","Use a static route id without parameter brackets if no params are needed"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"03f1687fe612ce3d2d9131139b5b188d9cf90c64","analyzedAt":"2026-09-02T02:01:50.504Z","contentChangedAt":null,"schemaVersion":2},"datasetVersion":"2026-09-09T06:17:21.866Z"}