public static IEnumerable <string> GetExistingMediaFiles(this BaseTask baseTask, string buildConfiguration)
        {
            var buildConfigAssetDir = baseTask.GetBuildConfigurationAssetDir(buildConfiguration);

            try
            {
                var files = Directory.EnumerateFiles(buildConfigAssetDir, "*.png", SearchOption.AllDirectories);
                if (baseTask.IsVerbose())
                {
                    if (files.Any())
                    {
                        baseTask.LogVerbose("{0} png files found in resources folder {1}", files.Count(), buildConfigAssetDir);
                        foreach (var file in files)
                        {
                            baseTask.LogDebug("Media file found {0}", file);
                        }
                    }
                    else
                    {
                        baseTask.LogVerbose("No files found in resources folder {0}", buildConfigAssetDir);
                    }
                }
                return(files);
            }
            catch (Exception ex)
            {
                baseTask.Log.LogErrorFromException(ex);
            }
            return(null);
        }