From b8a60f5bbdc5ebfbec3c370caeb18918ab08b19f Mon Sep 17 00:00:00 2001
From: Devon Carew <devoncarew@google.com>
Date: Fri, 19 Aug 2016 12:47:58 -0700
Subject: [PATCH] suppress exceptions from loader progress display messages
 (#5510)

---
 packages/flutter_tools/lib/src/vmservice.dart | 21 +++++++++++--------
 1 file changed, 12 insertions(+), 9 deletions(-)

diff --git a/packages/flutter_tools/lib/src/vmservice.dart b/packages/flutter_tools/lib/src/vmservice.dart
index 347dec902e8..cc021eda583 100644
--- a/packages/flutter_tools/lib/src/vmservice.dart
+++ b/packages/flutter_tools/lib/src/vmservice.dart
@@ -770,22 +770,25 @@ class Isolate extends ServiceObjectOwner {
 
   // Loader page extension methods.
 
-  Future<Map<String, dynamic>> flutterLoaderShowMessage(String message) {
-    return invokeRpcRaw('ext.flutter.loaderShowMessage', <String, dynamic> {
+  void flutterLoaderShowMessage(String message) {
+    // Invoke loaderShowMessage; ignore any returned errors.
+    invokeRpcRaw('ext.flutter.loaderShowMessage', <String, dynamic> {
       'value': message
-    });
+    }).catchError((dynamic error) => null);
   }
 
-  Future<Map<String, dynamic>> flutterLoaderSetProgress(double progress) {
-    return invokeRpcRaw('ext.flutter.loaderSetProgress', <String, dynamic>{
+  void flutterLoaderSetProgress(double progress) {
+    // Invoke loaderSetProgress; ignore any returned errors.
+    invokeRpcRaw('ext.flutter.loaderSetProgress', <String, dynamic>{
       'loaderSetProgress': progress
-    });
+    }).catchError((dynamic error) => null);
   }
 
-  Future<Map<String, dynamic>> flutterLoaderSetProgressMax(double max) {
-    return invokeRpcRaw('ext.flutter.loaderSetProgressMax', <String, dynamic>{
+  void flutterLoaderSetProgressMax(double max) {
+    // Invoke loaderSetProgressMax; ignore any returned errors.
+    invokeRpcRaw('ext.flutter.loaderSetProgressMax', <String, dynamic>{
       'loaderSetProgressMax': max
-    });
+    }).catchError((dynamic error) => null);
   }
 
   /// Causes the application to pick up any changed code.