ErrLookup › denoland/deno
denoland/deno
A modern runtime for JavaScript and TypeScript. · Rust · 1,653 source files
Analyzed at abd22074e4 on 2026-09-19. 974 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
InvalidStateError Invalid event state | exception | error | event, eventtarget, dispatchevent, dom |
| : is invalid; | exception | error | urlpattern, regexp, url, routing |
| Unhandled error in child worker. | exception | error | workers, unhandled-error, error-event, preventdefault, deno |
| MessageEvent constructor: Expected eventInitDict.source | exception | error | messageevent, messageport, worker, validation |
| Invalid registry configuration. Url | validation | error | registries, lsp, autocomplete, configuration, validation, url-template |
| Linter plugin name must only contain lowercase letters… | exception | error | deno, deno-lint, lint-plugin, validation, naming |
| Invalid RegExp pattern | exception | error | deno, deno-lint, lint-plugin, selector, regex, parse-error |
ERR_CRYPTO_INVALID_DIGEST Invalid digest | exception | error | crypto, hkdf, digest-algorithm, node-compat, error-wrapping |
| ${error} | exception | error | http, serve, servehttp, shutdown, op-error |
ERR_FS_EISDIR Path is a directory: rm returned EISDIR (is a directory) | exception | error | fs, node-compat, deno, filesystem, eisdir |
| exists | panic | critical | deno-core, v8, runtime-init, snapshot, panic, globalthis |
| Registry API URL cannot be used as a base URL | exception | error | url, configuration, registry, deno |
| Failed to parse profile | exception | error | cpu-profiler, serde, deserialization, v8, runtime |
ERR_OUT_OF_RANGE The value of " " is out of range. It must be a non-negative finite number… | validation | error | timers, net, http, node-compat, deno, range-error |
| Can't convert url (" ") to filename. | exception | error | url, cache, scheme, invalid-input, deno |
| Chunk's buffer is detached and so cannot be enqueued | exception | error | readable-stream, byte-stream, arraybuffer, detached-buffer, enqueue |
| e.message | exception | error | webtransport, http3, quic, connection, async |
| Illegal invocation | exception | error | workerlocation, hash, getter, this-binding, webidl |
ERR_FS_CP_SYMLINK_TO_SUBDIRECTORY Cannot overwrite symlink in subdirectory of self | exception | error | node-compat, fs, cp, copy, symlink, err-fs-cp-symlink-to-subdirectory, einval, deno |
| unable to convert | panic | critical | deno-core, v8, type-mismatch, runtime-init, snapshot, panic |
| expected file " " to exist | panic | critical | deno, build, cargo, build-script, release-build |
| Invalid response | exception | error | http, deno-serve, response-body, polyfill, cross-realm |
| Expected ArrayBuffer or ArrayBufferView for write chunk | exception | error | streams, writablestream, uint8array, stdio |
| Invalid deep-link scheme | validation | error | deep-link, url-scheme, validation, desktop, cli |
| Invalid digest | exception | error | node-compat, crypto, signing, hash, digest, unsupported-algorithm |
| Failed to convert range to tsc text span | exception | error | lsp, inlay-hints, tsc, range-mapping |
DataCloneError Cannot clone object of unsupported type. | exception | error | messageport, postmessage, structured-clone, datacloneerror |
| app name resolves its runtime library to , which is the… | validation | error | desktop, packaging, linux, filename-collision, deno-compile |
EISDIR is a directory (not copied) | exception | error | deno, node-compat, fs, cp, eisdir |
| No packages to publish | exception | error | publish, workspace, exclusions, jsr, deno-json |
ERR_WORKER_INVALID_EXEC_ARGV Initiated Worker with invalid execArgv flags | validation | error | worker-threads, node-compat, execargv, cli-flags, node-options |
| Invalid registry configuration. Url | validation | error | registries, lsp, autocomplete, configuration, validation, url-template |
| Invalid serialization type | validation | error | node-compat, ipc, child-process, env |
| Attempt to allocate Buffer larger than maximum size: 0x | validation | error | buffer, memory-allocation, range-error, node-compat, input-validation |
ABORT_ERR The operation was aborted | exception | error | events, abort-signal, async, node-compat, cancellation |
| stream reader has shut down | exception | error | http, server, stream, unexpected-eof, compression, deno |
| Failed to initialize a JsRuntime | panic | critical | deno-core, v8, runtime-init, snapshot, panic, constructor |
InvalidCharacterError Failed to decode base64: invalid character | exception | error | atob, base64, decoding |
| Expected highWaterMark to be a positive number or Infinity… | exception | error | streams, queuing-strategy, highwatermark, rangeerror |
| The value " " is invalid for option "size | validation | error | buffer, memory-allocation, range-error, node-compat, input-validation |
| Unknown attribute | validation | error | op2, proc-macro, unknown-attribute, compile-time |
| Deno.jupyter is only available in `deno jupyter` subcommand | exception | error | jupyter, namespace, subcommand, feature-detection, getter |
ERR_INVALID_REPL_INPUT Listeners for `uncaughtException` cannot be used in the REPL | validation | error | repl, process, uncaught-exception, node-compat |
| Multiple selectors not allowed here | exception | error | deno, deno-lint, lint-plugin, selector, parse-error, invariant |
| Redirects should be resolved | panic | error | eszip, deno-compile, redirect, legacy-format, panic |
ERR_ASSERTION Functions were not called the expected number of times | exception | error | testing, assertion, calltracker, node-compat |
| Invalid state: File-backed Blobs are not cloneable | exception | error | blob, structured-clone, postmessage, node-compat, file |
ERR_INVALID_SYNC_FORK_INPUT Asynchronous forks do not support Buffer, TypedArray, DataView or string input | validation | error | child-process, stdio, spawn-sync, node-compat, deno |
ERR_FS_CP_EINVAL Invalid src or dest | exception | error | node-compat, fs, cp, copy, einval, err-fs-cp-einval, deno |
| Found problem | exception | error | publish, jsr, slow-types, typechecking, api-design |
| The BYOB request's buffer has been detached and so cannot… | exception | error | streams, byob, arraybuffer, detached-buffer, readable-stream |
| Failed to initialize JsRuntime for snapshotting | panic | critical | deno-core, snapshot, build-rs, runtime-init, panic |
| could not find laufey.app under | exception | warning | macos, code-signing, notifications, laufey, app-bundle |
ERR_INVALID_ARG_VALUE The property 'input.escapeCodeTimeout' is invalid. Received | validation | error | readline, node-compat, deno, options-validation, timeout |
| refusing to add to tarball | exception | error | deno-publish, npm-tarball, path-traversal, security, archive |
| Expected the second argument to assertSnapshot() to be an… | exception | error | deno, deno-test, snapshot, assertion, typeerror, api-misuse |
| app name resolves its to , which is already part of the… | validation | error | cli, desktop, name-collision, file-conflict |
| Cannot generate declarations for files with different… | validation | error | typescript, declarations, compiler-options, workspace, tsc |
| Unsupported KeyObject type for structured clone | exception | error | crypto, structured-clone, workers, node-compat, keyobject |
| checked-in AppImage runtime stub | panic | critical | deno, build, cargo, build-script, appimage, sha256, integrity-check |
| First argument to 'respondWith' must be a Response… | exception | error | http, respondwith, response, polyfill, cross-realm |
| failed to evaluate expression | exception | error | repl, inspector, evaluate, cli |
| Empty selector | exception | error | deno, deno-lint, lint-plugin, selector, parse-error, invariant |
ERR_HTTP_CONTENT_LENGTH_MISMATCH Response body's content-length of | error_code | error | http, node-compat, content-length, stream |
| failed to atomic-rename LAUFEY cache to | exception | error | filesystem, concurrency, cache, windows, rename |
| cli/laufey_sums.lock has no pinned laufey version —… | panic | critical | deno, build, cargo, build-script, lockfile, laufey |
| The provided value " " is not a valid permission name | exception | error | permissions, typeerror, descriptor, validation, deno |
| batchSize must be a positive integer: received | exception | error | deno-kv, kv-list, batch-size, pagination, argument-validation |
| Failed to execute 'observe' on 'PerformanceObserver': 1… | exception | error | performance, performance-observer, arguments, typeerror |
| PBKDF2 keys are not extractable | exception | error | crypto, webcrypto, pbkdf2, node-compat, key-management |
| Task not found | exception | error | task, deno-json, dependencies, cli |
| No callback function supplied | validation | error | node-compat, fs, fstat, callback, argument-validation, deno |
| Return value from onError handler must be a Response… | exception | error | http, deno-serve, on-error, cross-realm, polyfill |
| Test failed because the "only" option was used | exception | error | testing, deno-test, only, lsp, test-explorer |
| Unable to convert completion details | exception | error | lsp, completions, resolve, tsc |
| Invalid URL | exception | critical | http, node-compat, proxy, environment, config |
| refusing tar entry with traversal path | exception | critical | desktop, laufey, tar, path-traversal, zip-slip, security |
| Unknown worker event | exception | critical | workers, internal-invariant, protocol, version-mismatch, deno-core |
ERR_METHOD_NOT_IMPLEMENTED The open() method is not implemented | exception | error | fs, streams, filehandle, not-implemented, node-compat, deno |
ERR_UNKNOWN_SIGNAL Unknown signal | validation | error | signals, child-process, node-compat, deno, process |
| wasm streaming callback invoked before the JS handler was… | panic | error | wasm, deno-core, bootstrap, embedder, snapshot |
| MessageEvent constructor: Expected eventInitDict.ports | exception | error | messageevent, messageport, worker, validation |
| Missing snapshot file. | exception | error | deno, deno-test, snapshot, assertion, missing-file |
| Snapshot serializer must return a string | exception | error | deno, deno-test, snapshot, serializer, typeerror |
| is already registered | exception | error | deno-core, extensions, resource-registry, internal, registration |
| Illegal constructor | exception | error | abortsignal, abortcontroller, constructor |
| invalid vsock cid | exception | error | cron, vsock, socket-address, environment-variable, invalid-input |
| package name must not contain additional path segments | validation | error | jsr, package-name, validation, path |
| Cannot represent compiler option | exception | error | publish, jsr, jsx, pragma, unfurl, compiler-options |
| refusing to write tarball with unsafe name derived from… | exception | error | security, path-traversal, pack, package-name, validation |
| REPL thread failed to start | exception | critical | jupyter, kernel, thread, startup, v8 |
| Checksum verification failed. Actual | exception | critical | upgrade, checksum, sha256, download, integrity |
ERR_HTTP2_GOAWAY_SESSION New streams cannot be created after receiving a GOAWAY | exception | error | http2, node-compat, goaway, client, graceful-shutdown |
| Cannot enqueue value with size: chunk size must be a… | exception | error | streams, queuing-strategy, size, rangeerror |
| file busy | exception | error | filesystem, concurrency, sync-vs-async, resource, deno |
| no pinned SHA-256 for | exception | error | checksum, supply-chain, build, laufey, desktop |
| Cannot import scripts in a module worker | exception | error | workers, importscripts, esm, modules, typeerror |
| mock exports not found for | exception | error | node-test, mock-module, commonjs, registry |
| Unable to covert rename locations | exception | error | lsp, rename, tsc, workspace-edit |
| Attempted to read snapshot data out of range | panic | critical | deno-core, snapshot, extensions, version-skew, panic |