Bug 28822 - [Visual Studio 2015] Error messages showing up in a project that builds successfully on 2013
Summary: [Visual Studio 2015] Error messages showing up in a project that builds succe...
Status: RESOLVED NOT_REPRODUCIBLE
Alias: None
Product: Visual Studio Extensions
Classification: Xamarin
Component: General ()
Version: 3.9
Hardware: PC Mac OS
: Normal normal
Target Milestone: ---
Assignee: Bugzilla
URL:
Depends on: 32622
Blocks:
  Show dependency tree
 
Reported: 2015-04-06 17:19 UTC by Dominic N [MSFT]
Modified: 2016-12-22 22:01 UTC (History)
8 users (show)

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


Attachments
Test case from customer (251.14 KB, application/zip)
2015-04-06 17:19 UTC, Dominic N [MSFT]
Details


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Status:
RESOLVED NOT_REPRODUCIBLE

Description Dominic N [MSFT] 2015-04-06 17:19:13 UTC
Created attachment 10645 [details]
Test case from customer

## Overview

A customer has reported that they experienced some issues moving from Visual Studio 2013 to Visual Studio 2015. They are seeing errors numbering in the thousands in a large project of theirs. These errors, however, do not cause the build to fail or prevent deployment.

Said errors do not appear in Visual Studio 2013. 

The customer indicates there are two issues he's running into:
1) Many error messages related to missing system types (wants me to reference System.Globalization, System.Linq.Expressions, System.ObjectModel, System.Reflection, System.Runtime, System.Threading.Tasks, etc).
2) Error messages in one scenario where I have a base class that includes an abstract method containing a List<T> parameter. It gives errors stating the method is incorrectly overridden. Perhaps this is a side-effect of #1.

The customer has provided a sample application that demonstrates these kinds of error messages. If he opens/runs the project in VS2013, no errors appear. If he opens/runs the project in VS2015, the error messages appear.


## Additional information

We have been unable to replicate the issue the customer is facing


## Version information

SYSTEM INFO (Windows 8.1 Pro 64-bit)

Microsoft Visual Studio Ultimate 2015 CTP
Version 14.0.22609.0 D14REL
Microsoft .NET Framework
Version 4.6.00030

Installed Version: Ultimate

Architecture and Modeling Tools 00269-30000-00001-AA526
Microsoft Architecture and Modeling Tools

UML(r) and Unified Modeling Language(tm) are trademarks or registered trademarks of the Object Management Group, Inc. in the United States and other countries.

LightSwitch for Visual Studio 2015 CTP 00269-30000-00001-AA526
Microsoft LightSwitch for Visual Studio 2015 CTP

Visual Basic 2015 CTP 00269-30000-00001-AA526
Microsoft Visual Basic 2015 CTP

Visual C# 2015 CTP 00269-30000-00001-AA526
Microsoft Visual C# 2015 CTP

Visual C++ 2015 CTP 00269-30000-00001-AA526
Microsoft Visual C++ 2015 CTP

Visual F# 2015 RC 00269-30000-00001-AA526
Microsoft Visual F# 2015 RC

Visual Studio 2015 CTP Code Analysis Spell Checker 00269-30000-00001-AA526
Microsoft(r) Visual Studio(r) 2015 CTP Code Analysis Spell Checker

Portions of International CorrectSpell(tm) spelling correction system (c) 1993 by Lernout & Hauspie Speech Products N.V. All rights reserved.

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

Windows Phone SDK 8.0 - ENU 00269-30000-00001-AA526
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 CTP 14.0.20206.0
ASP.NET and Web Tools CTP

ASP.NET Web Frameworks and Tools 2013 5.2.30130.0
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.

ErrorList 1.0
Implementation of the Error and Task lists.

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

Microsoft Azure Mobile Services Tools 1.3
Microsoft Azure Mobile Services Tools

Microsoft Code Digger 0.9
Microsoft Code Digger

Microsoft.Pex.VisualStudio 1.0
Pex

NuGet Package Manager 3.0.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.

Office Developer Tools for Visual Studio 2015 CTP ENU 14.0.22602
Microsoft Office Developer Tools for Visual Studio 2015 CTP ENU

PowerShell Tools 1.3
Provides file classification services using PowerShell

SQL Server Data Tools 14.0.50120.0
Microsoft SQL Server Data Tools

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

Xamarin 3.9.302.0 (80f4e84)
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 (3b3ef438017c7ecf486defa9e01567a5f2b3cb2a)
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 1 asimk 2015-04-28 13:58:01 UTC
I have checked this issue on VS2015 and VS2013. I observed that it is working fine on both environment. Please review the screencast and let me know what additional steps we need to follow to reproduce this issue.

VS 2015 Screencast: http://www.screencast.com/t/1ynpOqNjowQ

VS 2013 Screencast: http://www.screencast.com/t/ewT6s3CVr

Also it would be great if you provide us zip xamarin log, Application output.

For Application output: Go to menu -> View -> Output 
For zip xamarin log: Got to menu -> Help -> Xamarin -> Zip Xamarin Log

Environment Info:
Microsoft Visual Studio Ultimate 2015 CTP
Version 14.0.22609.0 D14REL
Microsoft .NET Framework
Version 4.6.00030

Installed Version: Ultimate

Xamarin   3.11.452.0 (d79ce10)
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.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
Comment 2 Jose Gallardo 2016-12-22 22:01:03 UTC
Resolving as Not Reproducible.