ErrLookup › languagetool-org/languagetool
languagetool-org/languagetool
Style and Grammar Checker for 25+ Languages · Java · 1,307 source files
Analyzed at 2e990059ce on 2026-09-06. 368 documented errors.
| Code / Message | Type | Severity | Tags |
|---|---|---|---|
| Your reference number | exception | error | languagetool, xml-rules, filter, index-out-of-bounds |
| Could not fetch user information | http | error | http, rest-api, internal-state, languagetool |
| Could not find day of week for | validation | error | java, nlp, grammar-rules, date-validation |
| Filter class ' ' must implement interface | exception | error | java, reflection, language-tool, rule-filters |
| Got no rule match: | exception | error | java, runtime-exception, rule-matching, nlp |
| Did not expect more than 1000 'totalTokenCount' meta… | exception | critical | lucene, ngram-index, corrupt-index |
| Cannot load or parse '" + filename + "' | exception | error | languagetool, bitext, ioexception, xml-parsing |
| DatabaseAccess.init() has not been called yet or failed | exception | error | java, singleton-not-initialized, lifecycle, database |
| Duplicate key | exception | error | languagetool, xml-rules, filter, duplicate-key |
| This end point needs a user id | http | error | http, api, languagetool, bad-request |
| Error: Lines from the input file should contain at least… | exception | error | java, input-validation, tsv |
| Invalid line format (DE item count != EN item count): " +… | exception | error | languagetool, dictionary-parsing, io, data-format |
| Check failed on sentence | exception | error | processing, sentence-check, robustness |
| Please set min and max attributes on the first token in the… | validation | error | languagetool, xml-rules, validation, and-group |
| Set only 'weekDay' and 'date' for " +… | exception | error | java, languagetool, rule-configuration, french |
| WordWithDeterminerFilter: Index out of bounds in " +… | validation | error | java, languagetool, index-out-of-bounds, rule-configuration, french |
| No 'data' found in grammalecte JSON: " + map | exception | error | java, languagetool, json, remote-rules, french |
| Error storing matches for | exception | error | database, sql, persistence |
| code is supposed to be a 2 (or rarely 3) character code… | console | error | configuration, server, validation |
| Unknown file name, expected '.xml' or '.bz2': + xmlDumpPath | exception | error | file-naming, unsupported-compression, cli |
| WordWithDeterminerFilter: Index out of bounds in " +… | validation | error | java, languagetool, rule-configuration, french |
| Could not find a source handler for | exception | error | file-naming, unsupported-format, configuration |
| Could not parse XML | exception | error | xml, parsing, http-response |
| IOException while initializing spellers | exception | error | io, speller, classpath, lazy-initialization |
| ConfusionCheckFilter: Index out of bounds in " +… | validation | error | java, languagetool, index-out-of-bounds, rule-configuration, french |
| Unexpected exception when processing regexp in rule with id | exception | error | |
| IOException during dictionary list loading | exception | error | io, network, dictionary-loading, ukrainian |
| Could not tag and disambiguate | exception | error | java, nlp, postagging, io-error, languagetool |
| File with example sentences not found: | exception | error | file-not-found, dev-tooling, corpus |
| Cannot synthesize | validation | error | java, nlp, synthesizer, io, grammar-rules |
| Format error in file | exception | error | java, languagetool, data-file-format, rule-loading |
| You cannot list unknown words in JSON output format | validation | error | cli, commandline, mutually-exclusive-flags, json |
| Could not turn rule ' ' for language into a string | exception | error | xml, xpath, serialization, java |
| JSON output format is not implemented for Bitext | validation | error | cli, conflicting-flags, json, bitext |
| Contradicting regex contains both '?i' (case-insensitive)… | validation | error | languagetool, regex, case-sensitivity, contradiction |
| Missing key | exception | error | java, languagetool, rule-filter, configuration |
| Too many values (" + valueCount + "), the storage needs… | exception | error | |
| Could not load manual tagger data from " +… | exception | error | |
| No ngram data found for: | exception | error | java, lucene, ngram, input-validation |
| ${e.getMessage()} | exception | error | grpc, timeout, remote-service |
| Invalid syntax for key/value, expected 'key:value', got | exception | error | |
| This server does not support username/password | exception | error | java, unsupported-operation, premium-only, authentication |
| This is the endpoint for the basic version of LanguageTool… | http | error | java, authentication, misconfiguration, premium-only |
| References must be larger than 0 | exception | error | languagetool, xml-rules, validation, value-out-of-range |
| Spanish language expected, got " + language | exception | error | languagetool, spanish, language-registry, type-mismatch |
| You cannot list unknown words when tagging only | validation | error | cli, conflicting-flags |
| Only backward references in match elements are possible… | exception | error | languagetool, xml-rules, validation, reference |
| Could not check text in file | exception | error | cli, file-io, encoding, runtime-exception |
| ConfusionCheckFilter: Index out of bounds in " +… | validation | error | java, languagetool, rule-authoring, index-out-of-bounds |
| Could not create filter class using constructor | exception | error | java, reflection, instantiation, language-tool |
| Could not find month | validation | error | java, nlp, grammar-rules, date-validation |
| IOException while writing debug log line | exception | error | io, java, logging, filesystem |
| Set only 'weekDay' and 'date' for " +… | exception | error | languagetool, rule-configuration, date-filter, invalid-argument |
| Translation language ( | exception | error | false-friend, rule-xml, configuration, language-parsing |
| Could not map to original position. isToPos | exception | error | offset-mapping, annotation, internal-state |
| Error trying to synthesize POS tag " + posTag + "… | exception | error | |
| IOException while synthesizing suggestions (adj-noun… | exception | error | io, synthesizer, suggestions, agreement-rule |
| Language was already instantiated, see the cause stacktrace… | exception | error | java, languagetool, singleton, irish |
| Missing 'text' or 'data' parameter | http | error | http, rest-api, validation, languagetool |
| 'triggers_error' is not supported for bitext XML | validation | error | languagetool, bitext, xml-rules, unsupported |
| IOException while synthesizing suggestions (prep-noun… | exception | error | io, synthesizer, suggestions, preposition |
| minOccurrence must be >= 0 | validation | error | validation, builder, range-check, java |
| Missing argument to command line option. | validation | error | cli, commandline, missing-argument |
| Profiling mode cannot be used with input from STDIN | validation | error | cli, commandline, stdin, profiling |
| Failed to parse line | exception | error | java, json-parsing, runtime-exception |
| listUnknownWords is set to false, unknown words not stored | exception | error | java, illegal-state, api-misuse |
| AdvancedSynthesizerFilter: Index out of bounds in | validation | error | grammar-rules, synthesizer, rule-configuration |
| Expected semicolon-separated input: | exception | error | java, input-validation, ioexception, parsing |
| Got more than one hit for: | exception | error | java, lucene, ngram, duplicate-data |
| AdvancedSynthesizerFilter: undefined POS tag for rule | validation | error | grammar-rules, synthesizer, postag, tagset |
| IOException while synthesizing suggestions (verb-noun… | exception | error | io, synthesizer, verbs, agreement-rule |
| Your reference number | exception | error | java, index-out-of-range, language-tool, rule-filters |
| No grams directory found in | exception | error | lucene, ngram-index, missing-directory |
| Could not load dictionary | exception | error | |
| Words can't start with " + SUFFIX_MARKER | exception | error | |
| IOException while synthesizing suggestions (їх -> їхній) | exception | error | io, synthesizer, pronoun, suggestions |
| MalformedURLException for decommunization URL | exception | error | url, static-initializer, malformed-url |
| Language | exception | error | java, nlp, language-model, configuration |
| RuleFilter: Index out of bounds in | exception | error | java, languagetool, rule-filter, index-out-of-bounds |
| Too many lemmas (" + value.size() + " > " + MAX_LENGTH + "… | exception | error | |
| Client request size limit of bytes per seconds exceeded… | http | warning | rate-limit, http, http-429, languagetool |
| " + language.getName() + " rule error. The number of… | exception | error | |
| References cannot be empty: Line | exception | error | languagetool, xml-rules, sax, validation |
| Could not find day of week for '" + dayStr + "' | exception | error | java, languagetool, date-parsing, spanish |
| IOException while synthesizing suggestions (його/її ->… | exception | error | io, synthesizer, pronoun, suggestions |
| ApostropheTypeFilter: Index out of bounds in | exception | error | rule-xml, filter, index-out-of-bounds, configuration |
| JSON item doesn't contain required property | exception | error | java, json, api-client |
| More than 2000 matches for | exception | error | lucene, ngram-index, performance |
| disambiguated POS cannot be null with posSelect == null and… | exception | error | |
| Too many lemmas (" + value.size() + " for the same hash " +… | exception | error | |
| WrongParameterNumberException | exception | error | cli, argument-count, java |
| Could not index | exception | error | indexing, io, wrapped-exception |
| Problems with loading disambiguation file: " +… | exception | error | |
| Could not load language model capable rules. | exception | error | language-model, rules, initialization, runtime-exception |
| French(Premium) language expected, got " + language | exception | error | java, languagetool, singleton, registry |
| Invalid format for 'preferredVariants', expected a dash as… | validation | error | http, api, validation, languagetool |
| minOccurrence must <= maxOccurrence: minOccurrence | validation | error | |
| Error analyzing sentence | exception | error | io, sentence-analysis, java |
| You cannot set both 'chunk' and 'chunk_re' for + id | validation | error | languagetool, xml-rules, validation, mutually-exclusive |
| AbstractAdvancedSynthesizerFilter only works with pattern… | exception | error | java, languagetool, rule-filter, pattern-rule |