Base translation file is not found

[sadiksha]

Hi,
I am having a problem with this gem. I have a translation file called messages_en.js under folder src/main/resources/static/scripts/internationalization/. So, in my grunt file I have made the following configuration

    angular_translate_compare: {
        options: {
          baseLang: 'src/main/resources/static/scripts/internationalization/messages_en', // the canonical language file to use as a base for comparison. languages determined by file name
          ext: 'js', // the file extensions to load,
          fatal: false, // whether this task should fail a build or not
          parsers: {} // additional parser functions for custom interpolations
        },
      src: 'src/main/resources/scripts/internationalization/messages_de.js' // file collection to use in comparison.  Base language file must be included in the collection
    }

When I run this grunt script, I get an error saying

Running "angular_translate_compare:src" (angular_translate_compare) task
>> Base translation file 'src/main/resources/static/scripts/internationalization/messages_en.js' not found.

But this file exists. Can you please help me with this issue?

Thank you.