ErrLookup › ReactiveX/rxjs

ReactiveX/rxjs

A reactive programming library for JavaScript · TypeScript · 351 source files

Analyzed at 54796b38a5 on 2026-08-28. 56 documented errors.

Code / MessageTypeSeverityTags
Invalid time format
validation error testing, time-format, scheduled-observable, rxjs-next, input-validation
Cannot initialize @rxjs/observable-polyfill
exception critical polyfill-installation, global-this, property-descriptor, lockdown, initialization
Duplicate output path
validation error migrate, filesystem, duplicate, planning
TypeScript did not return a transformed source file.
exception error typescript, compiler-api, codemod, invariant
Iterator must define a callable next() method
exception error iterator, symbol-iterator, observable-from, typeerror, validation
Migration result was refused for source
exception error migrate, validation, refusal, plan-apply
outputRoot is required when write is enabled.
validation error migrate, configuration, missing-option
${message}
exception error path-traversal, filesystem, validation
Output name must identify a file below outputRoot
validation error migrate, filesystem, path-validation, configuration
Refusing to overwrite a symbolic link
validation error migrate, filesystem, symlink, write-safety
Symbol.asyncIterator must return an object
exception error async-iterator, symbol-asynciterator, observable-from, typeerror, validation
Iterator return() must return an Object
exception error iterator, iterator-return, teardown, unsubscribe, typeerror
Output path must identify a file below outputRoot
validation error migrate, filesystem, path-validation
is not observable
exception error observable-from, typeerror, type-validation, primitive
Iterator next() must return an Object
exception error iterator, iterator-next, observable-from, typeerror, protocol
Observable constructor requires a callback
exception error observable-constructor, typeerror, callback-required, api-misuse
argument out of range
exception error element-at, argument-out-of-range, validation, off-by-one
Output name must be a non-empty relative path
validation error migrate, filesystem, path-validation, configuration
Cannot initialize @rxjs/observable-polyfill…
exception critical polyfill, abortcontroller, environment, cancellation, node-version
Invalid Skill installation provenance.
validation error cli, skill-install, schema-validation, corruption
Cannot install the RxJS create protocol
exception error symbol, patching, install, collision-isolation, rxjs-next
Output path is not a regular file
validation error migrate, filesystem, write-safety, path-validation
Unknown mode
exception error cli, argument-validation, migration
Output path already exists; enable overwrite explicitly
validation error migrate, filesystem, overwrite, write-safety
Cannot initialize @rxjs/observable-polyfill and could not…
exception critical polyfill, installation, rollback, aggregate-error, globalthis
Refusing to install over a
exception error cli, skill-install, safety-guard, overwrite-protection
Cannot locate the canonical Skill shipped by @rxjs/migrate.
exception error cli, installation, packaging
Canonical Skill root is not a directory
validation error cli, filesystem, packaging, validation
requires a value
exception error cli, argument-validation
An output path ancestor is not a directory
validation error filesystem, output-path, validation
Cannot locate the @rxjs/migrate package entry point.
exception error cli, environment, initialization
MarbleContext.setTimeout: callback must be a function
exception error test-scheduler, marble-testing, settimeout, callback-validation
Scheduler-backed publishReplay is not supported by this…
exception error publish-replay, scheduler, rxjs-next, migration, removed-api
Unknown framework
exception error cli, argument-validation, migration, test-framework
A combineLatest projection requires an array of observable…
exception error combine-latest, result-selector, rxjs-next, migration
Unexpected notification kind
exception error notification, validation, serialization, rxjs-next
refCount requires a ConnectableObservable
exception error ref-count, connectable-observable, publish, rxjs-next, api-misuse
Invalid notification, missing "kind"
exception error notification, observe, validation, materialize
Missing required argument
exception error cli, required-arguments, migration
Must combine observable instance with an array of…
exception error combine-latest, argument-validation, rxjs-next, api-misuse
RxJS Next expand options must be an object.
exception error expand, options-object, rxjs-next, migration
--out-dir is required with --write
validation error cli, argument-validation, filesystem
is not a directory
validation error filesystem, configuration, validation
Scheduler-backed generate is not supported by this Symbol…
exception error generate, scheduler, rxjs-next, migration, removed-api
Unknown option
exception error cli, argument-validation, unknown-flag
RxJS Next expand does not support a scheduler argument.
exception error expand, scheduler, rxjs-next, migration, removed-api
MarbleContext.setInterval: callback must be a function
exception error test-scheduler, marble-testing, setinterval, callback-validation
Refusing to overwrite a locally modified Skill copy at
exception error cli, skill-install, safety-guard, overwrite-protection
Usage: rxjs-migrate-skill <check|install|update|remove>…
validation error cli, arguments, usage
--harness is required
validation error cli, arguments, required-option
Refusing to remove a locally modified Skill copy at
exception error cli, skill-install, safety-guard, deletion-protection
Project root is not a directory
validation error cli, filesystem, validation
list of properties cannot be empty.
exception error pluck, argument-validation, spread, empty-arguments
--harness requires codex, claude, or cursor
validation error cli, arguments, validation
--project-root requires a directory
validation error cli, arguments, validation
Scheduler-backed shareReplay is not supported by this…
exception error share-replay, scheduler, rxjs-next, migration, removed-api