Arbify parsing error

[Holofox]

Hello! An exception was thrown, the cause of which is not yet known:

Output directory doesn't exist. Creating... done.
ru                  Downloading... done.
Generating l10n.dart file... done
Generating messages dart files... Error in parsing lib/l10n/l10n.dart, no messages extracted.
Unhandled exception:
Invalid argument(s): Parsing errors in lib/l10n/l10n.dart
#0      MessageExtraction._parseCompilationUnit (package:intl_translation/extract_messages.dart:117:7)
#1      MessageExtraction.parseContent (package:intl_translation/extract_messages.dart:102:14)
#2      MessageExtraction.parseFile (package:intl_translation/extract_messages.dart:87:12)
#3      IntlTranslation.generateFromArb.<anonymous closure> (package:arbify/src/generator/intl_translation.dart:58:44)
#4      MappedListIterable.elementAt (dart:_internal/iterable.dart:417:31)
#5      ListIterator.moveNext (dart:_internal/iterable.dart:343:26)
#6      IntlTranslation.generateFromArb (package:arbify/src/generator/intl_translation.dart:59:30)
#7      ArbifyCli._runIntlTranslationGenerateFromArb (package:arbify/src/arbify_cli.dart:286:23)
#8      ArbifyCli.runDownload (package:arbify/src/arbify_cli.dart:182:5)
<asynchronous suspension>
#9      ArbifyCli.run (package:arbify/src/arbify_cli.dart:57:13)
#10     main (file:///Volumes/Development/SDK/flutter/.pub-cache/hosted/pub.dartlang.org/arbify-0.0.11/bin/download.dart:4:21)
#11     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:299:32)
#12     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12)
pub finished with exit code 255

My JSON file schema is correct.