private string CheckPropertyIsSet(string propertyName)
{
jarManifestBuilder.TryGetValue(propertyName, out string value);
if (string.IsNullOrWhiteSpace(value))
{
throw new InvalidOperationException(string.Format(System.Globalization.CultureInfo.CurrentCulture,
UIResources.Builder_Error_RequiredPropertyMissing, propertyName));
}
return(value);
}
