New: Improve logging when processing files for import

Closes #5226

src/NzbDrone.Core/MediaFiles/EpisodeImport/Aggregation/AggregationService.cs

@@ -69,7 +69,9 @@ namespace NzbDrone.Core.MediaFiles.EpisodeImport.Aggregation
                 }
                 catch (Exception ex)
                 {
-                    _logger.Warn(ex, ex.Message);
+                    var message = $"Unable to augment information for file: '{localEpisode.Path}'. Series: {localEpisode.Series} Error: {ex.Message}";
+
+                    _logger.Warn(ex, message);
                 }
             }
 

src/NzbDrone.Core/Tv/EpisodeService.cs

@@ -269,7 +269,7 @@ namespace NzbDrone.Core.Tv
                 return sortedEpisodes[part.Value - 1];
             }
 
-            throw new InvalidOperationException("Multiple episodes with the same air date found");
+            throw new InvalidOperationException($"Multiple episodes with the same air date found. Date: {date}");
         }
     }
 }