Bug 30056 - [Visual Studio] Editing multiple XAML files causes hang
Summary: [Visual Studio] Editing multiple XAML files causes hang
Status: RESOLVED UPSTREAM
Alias: None
Product: Visual Studio Extensions
Classification: Xamarin
Component: General ()
Version: 3.11 (C5)
Hardware: PC Mac OS
: High normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on:
Blocks:
 
Reported: 2015-05-13 19:49 UTC by Kent Green [MSFT]
Modified: 2015-10-06 16:07 UTC (History)
8 users (show)

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


Attachments
Logs for repro in comment above. (8.81 KB, application/zip)
2015-06-04 16:11 UTC, Jon Goldberger [MSFT]
Details


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Status:
RESOLVED UPSTREAM

Description Kent Green [MSFT] 2015-05-13 19:49:07 UTC
===Overview===
From this desk case:
https://kb.xamarin.com/agent/case/156810

Customer reports that when editing multiple XAML files in their Xamarin.Forms project, Visual Studio hangs.

===Build Information===
Xamarin.Forms 1.4.2.6359

Microsoft Visual Studio Professional 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.5.51641

Installed Version: Professional

LightSwitch for Visual Studio 2013 06177-004-0444002-02924
Microsoft LightSwitch for Visual Studio 2013

Team Explorer for Visual Studio 2013 06177-004-0444002-02924
Microsoft Team Explorer for Visual Studio 2013

Visual Basic 2013 06177-004-0444002-02924
Microsoft Visual Basic 2013

Visual C# 2013 06177-004-0444002-02924
Microsoft Visual C# 2013

Visual C++ 2013 06177-004-0444002-02924
Microsoft Visual C++ 2013

Visual F# 2013 06177-004-0444002-02924
Microsoft Visual F# 2013

Visual Studio 2013 Code Analysis Spell Checker 06177-004-0444002-02924
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.

Windows Phone SDK 8.0 - ENU 06177-004-0444002-02924
Windows Phone SDK 8.0 - ENU

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

ASP.NET and Web Tools 12.4.51016.0
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 Microsoft Azure Websites
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Microsoft Azure

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 1.3
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

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

Microsoft Azure Mobile Services Tools 1.3
Microsoft Azure Mobile Services Tools

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

Office Developer Tools for Visual Studio 2013 ENU 12.0.30626
Microsoft Office Developer Tools for Visual Studio 2013 ENU

PowerShell Tools 1.3
Provides file classification services using PowerShell

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

SQL Server Data Tools 12.0.41012.0
Microsoft SQL Server Data 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 3.11.445.0 (5061f92)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android 5.1.0.115 (d23da369e436488f38c8ab8fe8a9ae7d9ea5256b)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.Forms Intellisense 1.0
Provides intellisense for Xamarin.Forms in the XML editor.

Xamarin.iOS 8.10.0.0 (7741cc495ab0baf04ff0405d0604bc27f0ecae2e)
Visual Studio extension to enable development for Xamarin.iOS.

Xamarin.iOS Unified Migration 1.0
Automated migration for Xamarin iOS Classic projects to Unified

Xamarin.TestCloud.Integration 1.0
Early preview of Xamarin Test Cloud integration​

===Additional Info===
I wasn't able to reproduce the issue on my end, but the customer submitted enough data that it seemed reasonable to go ahead and file this report. Since it is customer submitted data though, I'll be adding it as a private attachment shortly.
Comment 2 Jon Goldberger [MSFT] 2015-06-03 16:57:59 UTC
I am able to hit this bug as well using the described steps with a Shared project type for the Forms core project. However it does not occur with a PCL project, as Kent noted, on my end.
Comment 4 Jon Goldberger [MSFT] 2015-06-03 17:05:17 UTC
@kent, the test project sent by the reporting customer was using a Shared Project type for the Forms core project, not a PCL as you indicated, so perhaps this is why you could not reproduce?
Comment 6 Jon Goldberger [MSFT] 2015-06-04 16:10:29 UTC
Adding more info as requested:

## Steps to reproduce

1. Open Visual Studio (I used VS 2013 update 4, version info below)

2. Create a new Forms Shared project.

3. Add two Xaml pages to the Forms core Shared project.

4. Start editing one of the XAML files.

Expected result: Can edit file.

Actual result: VS hangs. Need to quit using Task Manager.

## Screencast: http://screencast.com/t/bAOhbjCRgBv
Note that after typing the opening angle bracket that VS is unresponsive (hard to show in a screencast, but see how the menus are not highlighted when hovered over as in the beginning of the screen cast. And nothing is clickable, VS totally unresponsive.  

## Logs: Attached as MulitpleXamlEditingLogs.zip

## Notes

I was consistently able to reproduce this issue with a new solution as above or with an old Forms Shared solution. 


## Environment

Microsoft Visual Studio Ultimate 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.6.00057

Installed Version: Ultimate

Architecture and Modeling Tools   06181-004-0451031-02209
Microsoft Architecture and Modeling Tools
    
UML® and Unified Modeling Language™ are trademarks or registered trademarks of the Object Management Group, Inc. in the United States and other countries.

LightSwitch for Visual Studio 2013   06181-004-0451031-02209
Microsoft LightSwitch for Visual Studio 2013

Team Explorer for Visual Studio 2013   06181-004-0451031-02209
Microsoft Team Explorer for Visual Studio 2013

Visual Basic 2013   06181-004-0451031-02209
Microsoft Visual Basic 2013

Visual C# 2013   06181-004-0451031-02209
Microsoft Visual C# 2013

Visual C++ 2013   06181-004-0451031-02209
Microsoft Visual C++ 2013

Visual F# 2013   06181-004-0451031-02209
Microsoft Visual F# 2013

Visual Studio 2013 Code Analysis Spell Checker   06181-004-0451031-02209
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.

Windows Phone SDK 8.0 - ENU   06181-004-0451031-02209
Windows Phone SDK 8.0 - ENU

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

ASP.NET and Web Tools   12.4.60320.0
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 Microsoft Azure Web Apps
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Microsoft Azure

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   1.3
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

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

Microsoft Azure HDInsight HQL Service   2.0.0.0000
Language service for Hive query

Microsoft Azure HDInsight Tools for Visual Studio   2.0.0.0000
An integrated development environment for HDInsight application development.

Microsoft Azure Mobile Services Tools   1.3
Microsoft Azure Mobile Services Tools

Microsoft Azure Tools   2.4
Microsoft Azure Tools for Microsoft Visual Studio 2013 - v2.4.20730.1601

Microsoft Azure Tools   2.5
Microsoft Azure Tools for Microsoft Visual Studio 2013 - v2.5.30319.1603

Multilingual App Toolkit   3.1.1250.0
Multilingual App Toolkit helps you localize your Windows Store app by providing file management, pseudo and machine translation, translation editor, and build integration. http://go.microsoft.com/fwlink?linkid=245767

NuGet Package Manager   2.8.60318.734
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.

Office Developer Tools for Visual Studio 2013 ENU   12.0.31105
Microsoft Office Developer Tools for Visual Studio 2013 ENU

PowerShell Tools   1.3
Provides file classification services using PowerShell

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

SQL Server Data Tools   12.0.41025.0
Microsoft SQL Server Data Tools

Windows Azure Tools   2.3
Windows Azure Tools for Microsoft Visual Studio 2013 - v2.3.20320.1602

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   3.11.590.0 (5160db7)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android   5.1.3.1 (d419c934e6ce2113653ff4c40214e3a5d5a69440)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.Forms Intellisense   1.0
Provides intellisense for Xamarin.Forms in the XML editor.

Xamarin.iOS   8.10.1.0 (fce006eae308515fc1eaf85fcc0f90699d9c7e8b)
Visual Studio extension to enable development for Xamarin.iOS.

Xamarin.iOS Unified Migration   1.0
Automated migration for Xamarin iOS Classic projects to Unified

Xamarin.TestCloud.Integration   1.0
Early preview of Xamarin Test Cloud integration
Comment 7 Jon Goldberger [MSFT] 2015-06-04 16:11:20 UTC
Created attachment 11469 [details]
Logs for repro in comment above.

I cleared the logs out right before reproducing issue and collected right after issue occurred.
Comment 8 Jon Goldberger [MSFT] 2015-06-04 16:20:20 UTC
Additional note:

I had another customer reporting a hang when editing Xaml files before this was reported. In this customer's case, there was a message on the Status bar that said "Waiting for parse to complete…" when VS froze. I had discovered a link that suggested deleting the .suo file, and deleting this file temporarily stopped VS from freezing editing Xaml files, however the issue returned. I just confirmed that deleting the .suo file also allows me to edit multiple Xaml files without freezing after doing the steps to reproduce above, so I am thinking this is a related issue now. 

Customer still has to confirm that he is using a Shared project and that the freeze only occurs editing multiple Xaml files.
Comment 10 Abhishek 2015-06-18 06:16:35 UTC
I have tried this issue and able to reproduce the reported behavior at my end.

Steps to Reproduce:
1. Open Visual Studio
2. Create a new Forms Shared project.
3. Add two Xaml pages to the Forms core Shared project.
4. Start editing one of the XAML files.
5. VS froze.

Screencast: http://www.screencast.com/t/isyoFF6Ltm
IDE Log: https://gist.github.com/Abhishekk360/51b46c70a68816211560

Environment Info:

Microsoft Visual Studio Professional 2013
Version 12.0.31101.00 Update 4
Microsoft .NET Framework
Version 4.6.00007

Installed Version: Professional

LightSwitch for Visual Studio 2013   06177-004-0446016-02589
Microsoft LightSwitch for Visual Studio 2013

Team Explorer for Visual Studio 2013   06177-004-0446016-02589
Microsoft Team Explorer for Visual Studio 2013

Visual Basic 2013   06177-004-0446016-02589
Microsoft Visual Basic 2013

Visual C# 2013   06177-004-0446016-02589
Microsoft Visual C# 2013

Visual C++ 2013   06177-004-0446016-02589
Microsoft Visual C++ 2013

Visual F# 2013   06177-004-0446016-02589
Microsoft Visual F# 2013

Visual Studio 2013 Code Analysis Spell Checker   06177-004-0446016-02589
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 and Web Tools   12.4.51016.0
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 Microsoft Azure Websites
Web publishing: Extensions for publishing ASP.NET web projects to hosting providers, on-premises servers, or Microsoft Azure

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   1.3
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Microsoft Azure Mobile Services Tools   1.3
Microsoft Azure Mobile Services Tools

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

Office Developer Tools for Visual Studio 2013 ENU   12.0.30626
Microsoft Office Developer Tools for Visual Studio 2013 ENU

PowerShell Tools   1.3
Provides file classification services using PowerShell

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

SQL Server Compact & SQLite Toolbox   4.1.0
SQL Server Compact & SQLite Toolbox adds scripting, import, export, rename, query execution and much more to SQL Server Compact & SQLite Data Connections.

SQL Server Data Tools   12.0.41012.0
Microsoft SQL Server Data 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   3.11.665.0 (7d53977)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android   5.1.4.14 (a3f55306a55f005d2baf8e5d2c698230b22ab968)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.Forms Intellisense   1.0
Provides intellisense for Xamarin.Forms in the XML editor.

Xamarin.iOS   8.10.2.0 (67b390d0d1bd741582cf7b7fd3ffea08583a3f83)
Visual Studio extension to enable development for Xamarin.iOS.

Xamarin.iOS Unified Migration   1.0
Automated migration for Xamarin iOS Classic projects to Unified

Xamarin.TestCloud.Integration   1.0
Early preview of Xamarin Test Cloud integration
Comment 11 Christian Schmitt 2015-08-08 18:38:01 UTC
I have the same Problem but sometimes its enough to edit one XAML file.
It also freezing if you have a PCL not a shared Solution

Microsoft Visual Studio Community 2015
Version 14.0.23107.0 D14REL
Microsoft .NET Framework
Version 4.6.00079

Installed Version: Community

Visual Basic 2015   00322-20000-00000-AA114
Microsoft Visual Basic 2015

Visual C# 2015   00322-20000-00000-AA114
Microsoft Visual C# 2015

Visual C++ 2015   00322-20000-00000-AA114
Microsoft Visual C++ 2015

Windows Phone SDK 8.0 - ENU   00322-20000-00000-AA114
Windows Phone SDK 8.0 - ENU

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

ASP.NET and Web Tools   14.0.20626.0
ASP.NET and Web Tools

ASP.NET Web Frameworks and Tools 2013   5.2.30624.0
For additional information, visit http://www.asp.net/

Common Azure Tools   1.5
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

GenerateUnitTest   1.0
Generates unit test code for methods in classes under test.

JetBrains ReSharper Ultimate 2015.1.3   Build 102.0.20150724.141603
JetBrains ReSharper Ultimate package for Microsoft Visual Studio. For more information about ReSharper Ultimate, visit http://www.jetbrains.com/resharper. Copyright © 2015 JetBrains, Inc.

LayoutsORama   1.0
Information about my package

Microsoft Azure Mobile Services Tools   1.4
Microsoft Azure Mobile Services Tools

NuGet Package Manager   3.0.0
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   14.0.50616.0
Microsoft SQL Server Data Tools

tangible T4 Editor   2.3.0
tangible engineering GmbH

Visual Studio Tools for Universal Windows Apps   14.0.23121.00 D14OOB
The Visual Studio Tools for Universal Windows apps allow you to build a single universal app experience that can reach every device running Windows 10: phone, tablet, PC, and more. It includes the Microsoft Windows 10 Software Development Kit.

Xamarin   3.11.836.0 (ed5c750)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android   5.1.5.3 (f98871a95a479f6d71b3067b7e5834d41fcb2118)
Visual Studio plugin to enable development for Xamarin.Android.

Xamarin.iOS   8.10.4.0 (6db87c53c073f4af2f5247fb738a27ea08c094fd)
Visual Studio extension to enable development for Xamarin.iOS.

Xamarin.iOS Unified Migration   1.0
Automated migration for Xamarin iOS Classic projects to Unified

Xamarin.TestCloud.Integration   1.0
Early preview of Xamarin Test Cloud integration
Comment 12 Joaquin Jares 2015-10-06 16:07:22 UTC
This bug is something in MS's source. We reported it to them and they added a bug that will (hopefully) be resolved in SP1. I'm solving upstream, but we should retest when SP1 lands.