Bug 54014 - [VS 2017 / 2015 : Android] Exception while loading Android preview for Xamarin.form shared project.
Summary: [VS 2017 / 2015 : Android] Exception while loading Android preview for Xamari...
Alias: None
Product: Visual Studio Extensions
Classification: Xamarin
Component: Xamarin.Forms Previewer ()
Version: 4.3.1 (15.1)
Hardware: PC Windows
: --- major
Target Milestone: 15.2
Assignee: Jérémie Laval
Depends on:
Reported: 2017-03-27 10:13 UTC by Gaurav Ganorkar
Modified: 2017-05-05 07:30 UTC (History)
7 users (show)

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

Attached screenshot,logs & exception file. (95.43 KB, application/x-zip-compressed)
2017-03-27 10:13 UTC, Gaurav Ganorkar

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Description Gaurav Ganorkar 2017-03-27 10:13:08 UTC
Created attachment 20859 [details]
Attached screenshot,logs & exception file.

Getting mono.android.DesignerException caused by java.lang.UnsatisfiedLinkError: while loading Android preview from Xamarin.forms shared project.

Steps to reproduce:
1. Create new Xamarin.form shared project.
2. Build the entire solution.
3. Open the MainPage.xaml.
4. Go to View > Other windows > Xamarin.Forms previewer. Let the preview load for Android & observer.

Actual : Getting Mono.android.Designer exception popup.

Expected: Form Preview should load successfully.

Attaching the logs, screenshot & the exception from the exception window.

Microsoft Visual Studio Enterprise 2017 d15rel
Version 15.1 (26324.1) d15rel d15rel
Microsoft .NET Framework
Version 4.6.01055

Installed Version: Enterprise

Architecture Diagrams and Analysis Tools   00369-60000-00001-AA420
Microsoft Architecture Diagrams and Analysis Tools

Visual Basic 2017   00369-60000-00001-AA420
Microsoft Visual Basic 2017

Visual C# 2017   00369-60000-00001-AA420
Microsoft Visual C# 2017

Visual C++ 2017   00369-60000-00001-AA420
Microsoft Visual C++ 2017

Visual F# 4.1   00369-60000-00001-AA420
Microsoft Visual F# 4.1

ASP.NET and Web Tools 2017   15.0.30320.0
ASP.NET and Web Tools 2017

ASP.NET Web Frameworks and Tools 2017   5.2.50303.0
For additional information, visit https://www.asp.net/

Azure App Service Tools v3.0.0   15.0.30209.0
Azure App Service Tools v3.0.0

Azure Data Lake Node   1.0
This package contains the Data Lake integration nodes for Server Explorer.

Azure Data Lake Tools for Visual Studio   2.2.5000.0
Microsoft Azure Data Lake Tools for Visual Studio

Common Azure Tools   1.9
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Fabric.DiagnosticEvents   1.0
Fabric Diagnostic Events

JavaScript Language Service   2.0
JavaScript Language Service

JavaScript Project System   2.0
JavaScript Project System

JavaScript UWP Project System   2.0
JavaScript UWP Project System

KofePackagePackage Extension   1.0
KofePackagePackage Visual Studio Extension Detailed Info

Merq   1.1.17-rc (cba4571)
Command Bus, Event Stream and Async Manager for Visual Studio extensions.

Microsoft Azure Hive Query Language Service   2.2.5000.0
Language service for Hive query

Microsoft Azure Tools   2.9
Microsoft Azure Tools for Microsoft Visual Studio 2017 - v2.9.50131.1

Microsoft MI-Based Debugger   1.0
Provides support for connecting Visual Studio to MI compatible debuggers

Microsoft Visual Studio VC Package   1.0
Microsoft Visual Studio VC Package

Mono Debugging for Visual Studio   Mono.Debugging.VisualStudio
Support for debugging Mono processes with Visual Studio.

Node.js Tools   1.3.50316.00
Adds support for developing and debugging Node.js apps in Visual Studio

NuGet Package Manager   4.1.0
NuGet Package Manager in Visual Studio. For more information about NuGet, visit http://docs.nuget.org/.

Office Developer Tools for Visual Studio 2017 ENU   15.0.26112
Microsoft Office Developer Tools for Visual Studio 2017 ENU

Redgate ReadyRoll
Extend DevOps processes to your SQL Server databases and safely automate database deployments.
Visit https://www.red-gate.com/readyroll for more information.

Copyright (C) 2011 Red Gate Software Ltd. All rights reserved.
This software contains components from Component Owl.
SQL Server is a registered trademark of Microsoft Corporation. 
Visual Studio is a registered trademark of Microsoft Corporation. 

ReadyRoll contains code from the following open source software:

NuGet https://www.nuget.org/
SQL LocalDB Wrapper https://github.com/martincostello/sqllocaldb
Autofac https://autofac.org/
Json.NET https://json.net/
MahApps.Metro http://mahapps.com/
SemVer https://github.com/maxhauser/semver
Menees Diff Controls http://www.menees.com/
Log4Net http://logging.apache.org/log4net/
Extended WPF Toolkit https://wpftoolkit.codeplex.com/
Code InfoBox VSX http://www.codeproject.com/Articles/55196/Code-InfoBox-Visual-Studio-Extension-VSX
OctoPack https://github.com/OctopusDeploy/OctoPack
SQLite https://sqlite.org/

This product contains icons from http://www.visualpharm.com distributed under a free backlink license.

For license details or other notices relating to the above software, please see NOTICE.TXT and EULA.rtf in the ReadyRoll application folder.

Redgate SQL Prompt
Write, format, and refactor SQL effortlessly

Redgate SQL Search
Search functionality for SQL Server databases, from within Visual Studio

SQL Server Data Tools   15.1.61702.140
Microsoft SQL Server Data Tools

ToolWindowHostedEditor   1.0
Hosting json editor into a tool window

TypeScript tools for Visual Studio

Visual C++ for Cross Platform Mobile Development (Android)   15.0.26228.00
Visual C++ for Cross Platform Mobile Development (Android)

Visual C++ for Linux Development   1.0.6
Visual C++ for Linux Development

Visual Studio Tools for Apache Cordova   15.113.6201.1
Visual Studio Tools for Apache Cordova

Visual Studio tools for CMake   1.0
Visual Studio tools for CMake

Visual Studio Tools for Universal Windows Apps   15.0.26324.01
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.

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

Xamarin (f204cf0)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin.Android SDK (b8e3884)
Xamarin.Android Reference Assemblies and MSBuild support.

Xamarin.iOS and Xamarin.Mac SDK (9c31d85)
Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support.
Comment 1 Prashant [MSFT] 2017-03-28 04:50:58 UTC
Non-engineering team preliminary quick review
(See https://developer.xamarin.com/guides/cross-platform/troubleshooting/questions/howto-file-bug/ for general reference.)

## Suspected to be a regression or a problem with a new feature?
Uncertain. This issue is on the pre-release/non-stable builds of Xamarin tools

## Specific to one particular project, development computer, or target mobile device?
Uncertain, however the customer noticed this issue with the Xamarin.Forms shared project

## Includes clear steps to reproduce the problem?

## Considers the relevant log files for the part(s) of the process where something goes wrong (IDE editing, MSBuild building, deploying, launching, attaching the debugger, an in-app error, or something else), and has them attached?
Yes, includes screenshots, logs and version information

## Already took up time for many users?
Unclear. This is the only report I have seen for this issue.

## Makes development (a) difficult, impossible, or potentially hazardous, (b) moderately inconvenient, or (c) mildly inconvenient for users?
For non-xaml developer, I consider this would be a moderately incovenient
Comment 2 Jérémie Laval 2017-04-26 13:33:46 UTC
After reproducing the issue, could you attach to this report the full directory/file listing of the solution folder i.e.:


Comment 3 Gaurav Ganorkar 2017-05-04 07:09:17 UTC
Jeremie , 

I have tried multiple times with Latest 2017 Preview Build , Link -https://gist.github.com/ganorkargaurav/a1cb93ca0047c86143e07a458aea1c92

I was unable to reproduce this issue on the latest build.Maybe Somehow the issue might have resolved.

Still if you need for further debugging i have attached the solution folder.But i think we can resolve this bug.
Comment 4 Gaurav Ganorkar 2017-05-04 07:20:08 UTC
Solution folder link-  https://www.dropbox.com/s/gfdfju7pam4r29h/Cross_SHARED.zip?dl=0