diff --git a/WatchFaceDumper/Document.swift b/WatchFaceDumper/Document.swift
index 9bb2d05..e53d4b7 100644
--- a/WatchFaceDumper/Document.swift
+++ b/WatchFaceDumper/Document.swift
@@ -40,7 +40,7 @@ class Document: NSDocument {
             }
         } catch {
             NSLog("%@", "error reading \(fileWrapper): \(String(describing: error))")
-            throw error
+            throw NSError(domain: (error as NSError).domain,code: (error as NSError).code, userInfo: (error as NSError).userInfo ※ {$0[NSLocalizedFailureReasonErrorKey] = "\n\nError Report:\n" + String(describing: error)})
         }
     }
 
diff --git a/WatchFaceDumper/Watchface.swift b/WatchFaceDumper/Watchface.swift
index 8d6d731..962a19b 100644
--- a/WatchFaceDumper/Watchface.swift
+++ b/WatchFaceDumper/Watchface.swift
@@ -49,7 +49,10 @@ struct Watchface {
                     self = .circularSmallSimpleImage(t)
                     return
                 }
-                throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: [], debugDescription: "unknown ComplicationTemplate type"))
+
+
+                let anyTemplate = try? CLKComplicationTemplateAny(from: decoder)
+                throw DecodingError.dataCorrupted(DecodingError.Context(codingPath: [], debugDescription: "unknown ComplicationTemplate type: \(anyTemplate?.class ?? "(unknown structure)")"))
             }
 
             func encode(to encoder: Encoder) throws {
@@ -60,6 +63,10 @@ struct Watchface {
                 case .circularSmallSimpleImage(let t): try t.encode(to: encoder)
                 }
             }
+
+            private struct CLKComplicationTemplateAny: Codable {
+                var `class`: String
+            }
         }
 
         enum CLKTextProvider: Codable {