change svg 0.5.5+1 to 0.5.4 fix#19

CarGuo · CarGuo · commit 849c56d046ad · 2018-08-09T23:30:16.000+08:00
diff --git a/pubspec.lock b/pubspec.lock
@@ -208,7 +208,7 @@ packages:
       name: flutter_svg
       url: "https://pub.flutter-io.cn"
     source: hosted
-    version: "0.5.5+1"
+    version: "0.5.4"
   flutter_webview_plugin:
     dependency: "direct main"
     description:
