{"record":{"id":"6c5bbcb4924bf89e","repo":"sveltejs/kit","slug":"no-read-implementation-was-provided-please-ensu","errorCode":null,"errorMessage":"No `read` implementation was provided. Please ensure that your adapter is up to date and supports this feature","messagePattern":"No `read` implementation was provided\\. Please ensure that your adapter is up to date and supports this feature","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"packages/kit/src/runtime/app/server/index.js","lineNumber":23,"sourceCode":"/**\n * Read the contents of an imported asset from the filesystem\n * @example\n * ```js\n * import { read } from '$app/server';\n * import somefile from './somefile.txt';\n *\n * const asset = read(somefile);\n * const text = await asset.text();\n * ```\n * @param {string} asset\n * @returns {Response}\n * @since 2.4.0\n */\nexport function read(asset) {\n\t__SVELTEKIT_TRACK__('$app/server:read');\n\n\tif (!read_implementation) {\n\t\tthrow new Error(\n\t\t\t'No `read` implementation was provided. Please ensure that your adapter is up to date and supports this feature'\n\t\t);\n\t}\n\n\t// handle inline assets internally\n\tconst match = /^data:([^;,]+)?(;base64)?,/.exec(asset);\n\tif (match) {\n\t\tconst type = match[1] ?? 'application/octet-stream';\n\t\tconst data = asset.slice(match[0].length);\n\n\t\tif (match[2] !== undefined) {\n\t\t\tconst decoded = base64_decode(data);\n\n\t\t\t// @ts-ignore passing a Uint8Array to `new Response(...)` is fine\n\t\t\treturn new Response(decoded, {\n\t\t\t\theaders: {\n\t\t\t\t\t'Content-Length': decoded.byteLength.toString(),\n\t\t\t\t\t'Content-Type': type","sourceCodeStart":5,"sourceCodeEnd":41,"githubUrl":"https://github.com/sveltejs/kit/blob/03f1687fe612ce3d2d9131139b5b188d9cf90c64/packages/kit/src/runtime/app/server/index.js#L5-L41","documentation":"Runtime guard in the read() export of $app/server: the platform-specific read implementation was never installed. Adapters inject this implementation at startup; when it is missing (older adapter, missing/unconfigured platform, or an environment that doesn't provide filesystem access), calling read(asset) cannot work and this error explains the adapter is out of date or unsupported.","triggerScenarios":"Thrown at packages/kit/src/runtime/app/server/index.js:23 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Upgrade your @sveltejs/adapter-* package to the latest version","Make sure the built server is started through the adapter's output (e.g. node build/index.js), not by importing the source directly","If using a custom adapter, provide the read implementation via the emitted platform hooks"],"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"}