Bug 26111 - XA app fails to deploy with NullReferenceException when Fast Deployment enabled
Summary: XA app fails to deploy with NullReferenceException when Fast Deployment enabled
Status: RESOLVED NORESPONSE
Alias: None
Product: Android
Classification: Xamarin
Component: General ()
Version: 4.20.0
Hardware: PC Windows
: Normal normal
Target Milestone: ---
Assignee: Jonathan Pryor
URL:
Depends on:
Blocks:
 
Reported: 2015-01-16 12:47 UTC by Prashant Cholachagudda
Modified: 2017-08-23 21:37 UTC (History)
5 users (show)

Tags:
Is this bug a regression?: ---
Last known good build:

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Status:
RESOLVED NORESPONSE

Description Prashant Cholachagudda 2015-01-16 12:47:23 UTC
When we executing "Start Debugging" of new Xamarin.Forms project (Hello) and selected "Use Fast Deployment (debug mode only)" in Project properties in project Hello.Droid, it fails to deploy with following exception

Xamarin.AndroidTools.AndroidDeploymentException: FailedToSynchronizeFastDevAssemblies ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Mono.AndroidTools.AndroidDevice.Broadcast(String action, String[] categories, Dictionary`2 extras, String name, String component, CancellationToken cancellationToken)
   at AndroidDeviceExtensions.SendSeppukuBroadcast(AndroidDevice device, String packageName, CancellationToken cancellationToken)
   at Xamarin.AndroidTools.AndroidDeploySession.WaitForRemoteDirCreation(String destinationPath, CancellationToken token)
   at Xamarin.AndroidTools.AndroidDeploySession.InstallAssemblies(String destinationPath, CancellationToken token)
   --- End of inner exception stack trace ---
   at Xamarin.AndroidTools.AndroidDeploySession.InstallAssemblies(String destinationPath, CancellationToken token)
   at Xamarin.AndroidTools.AndroidDeploySession.FastDev(Boolean useExternal)
   at Xamarin.AndroidTools.AndroidDeploySession.Run(CancellationToken token)
   at Xamarin.AndroidTools.AndroidDeploySession.RunLogged(CancellationToken token)
   at Xamarin.AndroidTools.AndroidDeploySession.Start(CancellationToken token)

Diagnostic build log: https://gist.github.com/prashantvc/ef291dca91ce33145da9
Comment 1 Prashant Cholachagudda 2015-01-16 12:56:06 UTC
Version Information:

My MS Visual Studio: Ultimate 2013 Version 12.0.3.31101.00 Update 4,
Microsoft .NET Framework 4.5.50938,
In 'Installed products' on page 'About Microsoft Visual Studio' is:
Xamarin 3.9.2.360,
Xamarin.Android 4.20.0.34,
Xamarin.iOS 8.6.0.0,
Xamarin.iOS Unified Migration 1.0

Device: HUAWEI Ascend G630-U20; Android 4.3
Comment 2 Danish Akhtar 2015-01-19 02:29:33 UTC
Hi Prashant,

I have tried to reproduce this issue but not able to reproduce, XA app Mobile Apps->Blank App(Xam.Forms Portable) is launch successfully on LG Nexus 4 v 4.4.2 with Fast Deployment enabled.

Could you please confirmed that Are you getting this issue with this Device: HUAWEI Ascend G630-U20; Android 4.3 only and Xamarin 3.9.2.360?

Thanks

Environment info:
Microsoft Visual Studio Professional 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.5.50938

Installed Version: Professional

LightSwitch for Visual Studio 2013   06177-004-0446016-02241
Microsoft LightSwitch for Visual Studio 2013

Microsoft Office Developer Tools for Visual Studio 2013 ENU   06177-004-0446016-02241
Microsoft Office Developer Tools for Visual Studio 2013 ENU

Team Explorer for Visual Studio 2013   06177-004-0446016-02241
Microsoft Team Explorer for Visual Studio 2013

Visual Basic 2013   06177-004-0446016-02241
Microsoft Visual Basic 2013

Visual C# 2013   06177-004-0446016-02241
Microsoft Visual C# 2013

Visual C++ 2013   06177-004-0446016-02241
Microsoft Visual C++ 2013

Visual F# 2013   06177-004-0446016-02241
Microsoft Visual F# 2013

Visual Studio 2013 Code Analysis Spell Checker   06177-004-0446016-02241
Microsoft® Visual Studio® 2013 Code Analysis Spell Checker

Portions of International CorrectSpell™ spelling correction system © 1993 by Lernout & Hauspie Speech Products N.V. All rights reserved.

The American Heritage® Dictionary of the English Language, Third Edition Copyright © 1992 Houghton Mifflin Company. Electronic version licensed from Lernout & Hauspie Speech Products N.V. All rights reserved.

Application Insights Tools for Visual Studio Package   1.0
Application Insights Tools for Visual Studio

ASP.NET Web Frameworks and Tools 2012.2   4.1.21001.0
For additional information, visit http://go.microsoft.com/fwlink/?LinkID=309563

ASP.NET Web Frameworks and Tools 2013   5.2.21010.0
For additional information, visit http://www.asp.net/

Common Azure Tools   1.0
Provides common services for use by Azure Mobile Services and Windows Azure Tools.

Microsoft Advertising SDK for Windows Phone   
Microsoft Advertising SDK for Windows Phone
Build 

Microsoft Web Developer Tools 2013   2.0.40926.0
Microsoft Web Developer Tools contains the following components:
Support for creating and opening ASP.NET web projects
Browser Link: A communication channel between Visual Studio and browsers
Editor extensions for HTML, CSS, and JavaScript
Page Inspector: Inspection tool for ASP.NET web projects
Scaffolding: A framework for building and running code generators
Server Explorer extensions for Windows Azure Web Sites
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Windows Azure

NuGet Package Manager   2.8.50926.663
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.

PreEmptive Analytics Visualizer   1.2
Microsoft Visual Studio extension to visualize aggregated summaries from the PreEmptive Analytics product.

SQL Server Data Tools   12.0.30919.1
Microsoft SQL Server Data Tools

Windows Azure Mobile Services Tools   1.0
Windows Azure Mobile Services Tools

Windows Phone 8.1 SDK Integration   1.0
This package integrates the tools for the Windows Phone 8.1 SDK into the menus and controls of Visual Studio.

Workflow Manager Tools 1.0   1.0
This package contains the necessary Visual Studio integration components for Workflow Manager.

Xamarin   3.9.266.0 (b463888)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android   4.20.0.34 (49a04b966feb40dfdba49d57ba16249b66d606a6)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.iOS   8.6.1.0 (dd1b996f9fab5be032c5bfc54df1bc445953e90f)
Visual Studio extension to enable development for Xamarin.iOS.

Xamarin.iOS Unified Migration   1.0
Automated migration for Xamarin iOS Classic projects to Unified
Comment 3 Cody Beyer (MSFT) 2017-08-23 21:37:33 UTC
Because we have not received a reply to our request for more information we are closing this issue. If you are still encountering this issue, please reopen the ticket with the requested information. Thanks!