Exception after flutter create

Question

I'm new to Flutter,

Right after creating my second app:

flutter create myapp && cd myapp && flutter run

I'm getting this exception. And although the app with the simple counter works in emulator, this exception doesn't look healthy, right?

Using hardware rendering with device Android SDK built for x86. If you get graphics artifacts, consider enabling software rendering with "--enable-software-rendering".
Launching lib/main.dart on Android SDK built for x86 in debug mode...
I/flutter ( 6000): ══╡ EXCEPTION CAUGHT BY SCHEDULER LIBRARY ╞═════════════════════════════════════════════════════════
I/flutter ( 6000): The following assertion was thrown during a scheduler callback:
I/flutter ( 6000): There are multiple heroes that share the same tag within a subtree.
I/flutter ( 6000): Within each subtree for which heroes are to be animated (i.e. a PageRoute subtree), each Hero must
I/flutter ( 6000): have a unique non-null tag.                          
I/flutter ( 6000): In this case, multiple heroes had the following tag: <default FloatingActionButton tag>
...

(package:flutter/src/scheduler/binding.dart:1102:15)
    I/flutter ( 6000): #141    SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1049:9)
    I/flutter ( 6000): #142    SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:957:5)
    I/flutter ( 6000): #146    _invoke (dart:ui/hooks.dart:259:10)          
    I/flutter ( 6000): #147    _drawFrame (dart:ui/hooks.dart:217:3)        
    I/flutter ( 6000): (elided 3 frames from package dart:async)            
    I/flutter ( 6000): ════════════════════════════════════════════════════════════════════════════════════════════════════
    I/flutter ( 6000): ══╡ EXCEPTION CAUGHT BY IMAGE RESOURCE SERVICE ╞════════════════════════════════════════════════════
    I/flutter ( 6000): The following NetworkImageLoadException was thrown resolving an image codec:
    I/flutter ( 6000): HTTP request failed, statusCode: 403,                
    I/flutter ( 6000): https://cdn.pixabay.com/photo/2016/04/10/21/34/woman-1320810_960_720.jpg
    I/flutter ( 6000):                                                      
    I/flutter ( 6000): When the exception was thrown, this was the stack:   
    I/flutter ( 6000): #0      NetworkImage._loadAsync (package:flutter/src/painting/_network_image_io.dart:90:9)
    I/flutter ( 6000): <asynchronous suspension>                            
    I/flutter ( 6000): #1      NetworkImage.load (package:flutter/src/painting/_network_image_io.dart:47:14)
    I/flutter ( 6000): #2      ImageProvider.resolve.<anonymous closure>.<anonymous closure>.<anonymous closure> (package:flutter/src/painting/image_provider.dart:327:17)
    I/flutter ( 6000): #3      ImageCache.putIfAbsent (package:flutter/src/painting/image_cache.dart:160:22)
...

(package:flutter/src/rendering/object.dart:1724:7)
    I/flutter ( 6000): #213    RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13)
    I/flutter ( 6000): #214    RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7)
    I/flutter ( 6000): #215    RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13)
    I/flutter ( 6000): #216    RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7)
    I/flutter ( 6000): #217    RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13)
    I/flutter ( 6000): #218    RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7)
    I/flutter ( 6000): #219    RenderProxyBoxMixin.performLayout (package:flutter/src/rendering/proxy_box.dart:105:13)
    I/flutter ( 6000): #220    RenderObject.layout (package:flutter/src/rendering/object.dart:1724:7)
    I/flutter ( 6000): #221    MultiChildLayoutDelegate.layoutChild (package:flutter/src/rendering/custom_layout.dart:163:11)
    I/flutter ( 6000): #222    _ScaffoldLayout.performLayout (package:flutter/src/material/scaffold.dart:477:7)
    I/flutter ( 6000): #223    MultiChildLayoutDelegate._callPerformLayout (package:flutter/src/rendering/custom_layout.dart:232:7)
    I/flutter ( 6000): #224    RenderCustomMultiChildLayoutBox.performLayout (package:flutter/src/rendering/custom_layout.dart:391:14)
    I/flutter ( 6000): #225    RenderObject._layoutWithoutResize (package:flutter/src/rendering/object.dart:1584:7)
    I/flutter ( 6000): #226    PipelineOwner.flushLayout (package:flutter/src/rendering/object.dart:844:18)
    I/flutter ( 6000): #227    RendererBinding.drawFrame (package:flutter/src/rendering/binding.dart:344:19)
    I/flutter ( 6000): #228    WidgetsBinding.drawFrame (package:flutter/src/widgets/binding.dart:774:13)
    I/flutter ( 6000): #229    RendererBinding._handlePersistentFrameCallback (package:flutter/src/rendering/binding.dart:283:5)
    I/flutter ( 6000): #230    SchedulerBinding._invokeFrameCallback (package:flutter/src/scheduler/binding.dart:1102:15)
    I/flutter ( 6000): #231    SchedulerBinding.handleDrawFrame (package:flutter/src/scheduler/binding.dart:1041:9)
    I/flutter ( 6000): #232    SchedulerBinding._handleDrawFrame (package:flutter/src/scheduler/binding.dart:957:5)
    I/flutter ( 6000): #236    _invoke (dart:ui/hooks.dart:259:10)          
    I/flutter ( 6000): #237    _drawFrame (dart:ui/hooks.dart:217:3)        
    I/flutter ( 6000): (elided 6 frames from package dart:async)            
    I/flutter ( 6000):                                                      
    I/flutter ( 6000): Image provider:                                      
    I/flutter ( 6000):   NetworkImage("https://cdn.pixabay.com/photo/2016/04/10/21/34/woman-1320810_960_720.jpg", scale:
    I/flutter ( 6000):   1.0)                                               
    I/flutter ( 6000): Image key: NetworkImage("https://cdn.pixabay.com/photo/2016/04/10/21/34/woman-1320810_960_720.jpg",
    I/flutter ( 6000):   scale: 1.0)                                        
    I/flutter ( 6000): ════════════════════════════════════════════════════════════════════════════════════════════════════
    I/flutter ( 6000): Another exception was thrown: There are multiple heroes that share the same tag within a subtree.
    Running Gradle task 'assembleDebug'...                                  
    Running Gradle task 'assembleDebug'... Done                        26.5s
    ✓ Built build/app/outputs/apk/debug/app-debug.apk.
    Installing build/app/outputs/apk/app.apk...                         8.8s
    Syncing files to device Android SDK built for x86...                    
    10,951ms (!)

Do you have any idea why? Thanks!

Its probably showing the previous error from another project. Recently after flutter upgrade I got this kind of weird error — Crazy Lazy Cat
– Crazy Lazy Cat, Commented Dec 20, 2019 at 11:02
@VijayaRagavan same here, it happened after flutter upgrade. Thanks! — valk
– valk, Commented Dec 20, 2019 at 12:08

Benjamin · Accepted Answer · 2019-12-20 11:18:44Z

1

The starter Flutter app doesn't contain things like loading network images as it's just a simple counter app. As Vijaya said, it's probably just an old error from another project. I get the same stuff when I use flutter run. Unless you edited the flutter create template, you have nothing to worry about.

answered Dec 20, 2019 at 11:18

Benjamin

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2 Comments

valk Over a year ago

Thanks @Benjamin but it's a bare new project right after flutter create. How could it reflect any remnants of another projecct?

Benjamin Over a year ago

I'm not too sure, this issue github.com/flutter/flutter/issues/45478 seems to state it's fixed on the latest master branch. To switch, use flutter channel master but be warned, it's a pretty unstable branch. I'd wait a while for it to come out on at least beta.

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