Issues with Dart Intl library for translations

Basically you need to extract the messages to translate with :

pub run intl:extract_to_arb --output-dir=target/directory  my_program.dart more_of_my_program.dart

Then translate the arb files and finally generate .dart file for translated messages with :

 pub run intl:generate_from_arb --generated_file_prefix=<prefix>   <my_dart_files> <translated_ARB_files>

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