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[Bug] Xamarin Forms 5 project template not working. #13500

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zetaFairlight opened this issue Jan 22, 2021 · 7 comments
Closed

[Bug] Xamarin Forms 5 project template not working. #13500

zetaFairlight opened this issue Jan 22, 2021 · 7 comments
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s/needs-info ❓ A question has been asked that requires an answer before work can continue on this issue. s/unverified New report that has yet to be verified t/bug 🐛

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@zetaFairlight
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zetaFairlight commented Jan 22, 2021 •
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Description

Basic template doesn't work after upgrading to Xamarin.Forms 5.0+

Steps to Reproduce

  1. On Visual Studio 2019 create a Xamarin Forms project
  2. Update the nuget packages for Xamarin Forms to 5.0
  3. Run the sample on an Android phone (Moto G7 in this case), not in the emulator.

Expected Behavior

To see and use the placeholder/template for Xamarin project working on the real phone (Android 10, Moto G).

Actual Behavior

It doesn't render the main page completely nor the interactive sample page (it also doesn't work).
However it works using the emulator.

Basic Information

  • Version with issue: Android Forms 5.0 - Visual Studio 2019.

  • Last known good version: Android Forms 4 template.

  • Platform Target Frameworks:

    • Android: Android SDK 11.1.0.26

  • NuGet Packages: Xamarin Forms 5.0.0.1905 / Xamarin Essentials 1.6.0

  • Affected Devices: moto g(7) - Android version 10 - OPUS30.52-10-2-12

Environment

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Microsoft Visual Studio Community 2019
Version 16.8.4
VisualStudio.16.Release/16.8.4+30907.101
Microsoft .NET Framework
Version 4.8.04084

Installed Version: Community

Visual C++ 2019   00435-60000-00000-AA847
Microsoft Visual C++ 2019

ADL Tools Service Provider   1.0
This package contains services used by Data Lake tools

ASA Service Provider   1.0

ASP.NET and Web Tools 2019   16.8.557.25636
ASP.NET and Web Tools 2019

ASP.NET Core Razor Language Services   16.1.0.2052803+84e121f1403378489b842e1797df2f3f5a49ac3c
Provides languages services for ASP.NET Core Razor.

ASP.NET Web Frameworks and Tools 2019   16.8.557.25636
For additional information, visit https://www.asp.net/

Azure App Service Tools v3.0.0   16.8.557.25636
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   2.6.3000.0
Microsoft Azure Data Lake Tools for Visual Studio

Azure Functions and Web Jobs Tools   16.8.557.25636
Azure Functions and Web Jobs Tools

Azure Stream Analytics Tools for Visual Studio   2.6.3000.0
Microsoft Azure Stream Analytics Tools for Visual Studio

C# Tools   3.8.0-5.20604.10+9ed4b774d20940880de8df1ca8b07508aa01c8cd
C# components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Common Azure Tools   1.10
Provides common services for use by Azure Mobile Services and Microsoft Azure Tools.

Cookiecutter   16.8.20241.2
Provides tools for finding, instantiating and customizing templates in cookiecutter format.

Dotfuscator Community Edition   5.42.0.9514-e0e25f754
PreEmptive Protection - Dotfuscator CE

Extensibility Message Bus   1.2.6 (master@34d6af2)
Provides common messaging-based MEF services for loosely coupled Visual Studio extension components communication and integration.

Fabric.DiagnosticEvents   1.0
Fabric Diagnostic Events

GitHub.VisualStudio   2.11.106.19330
A Visual Studio Extension that brings the GitHub Flow into Visual Studio.

IntelliCode Extension   1.0
IntelliCode Visual Studio Extension Detailed Info

Microsoft Azure HDInsight Azure Node   2.6.3000.0
HDInsight Node under Azure Node

Microsoft Azure Hive Query Language Service   2.6.3000.0
Language service for Hive query

Microsoft Azure Service Fabric Tools for Visual Studio   16.0
Microsoft Azure Service Fabric Tools for Visual Studio

Microsoft Azure Stream Analytics Language Service   2.6.3000.0
Language service for Azure Stream Analytics

Microsoft Azure Stream Analytics Node   1.0
Azure Stream Analytics Node under Azure Node

Microsoft Azure Tools   2.9
Microsoft Azure Tools for Microsoft Visual Studio 2019 - v2.9.30924.1

Microsoft Continuous Delivery Tools for Visual Studio   0.4
Simplifying the configuration of Azure DevOps pipelines from within the Visual Studio IDE.

Microsoft JVM Debugger   1.0
Provides support for connecting the Visual Studio debugger to JDWP compatible Java Virtual Machines

Microsoft Library Manager   2.1.113+g422d40002e.RR
Install client-side libraries easily to any web project

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

Microsoft Visual C++ Wizards   1.0
Microsoft Visual C++ Wizards

Microsoft Visual Studio Tools for Containers   1.1
Develop, run, validate your ASP.NET Core applications in the target environment. F5 your application directly into a container with debugging, or CTRL + F5 to edit & refresh your app without having to rebuild the container.

Microsoft Visual Studio VC Package   1.0
Microsoft Visual Studio VC Package

Mono Debugging for Visual Studio   16.8.43 (00471f8)
Support for debugging Mono processes with Visual Studio.

NuGet Package Manager   5.8.1
NuGet Package Manager in Visual Studio. For more information about NuGet, visit https://docs.nuget.org/

ProjectServicesPackage Extension   1.0
ProjectServicesPackage Visual Studio Extension Detailed Info

Python   16.8.20241.2
Provides IntelliSense, projects, templates, debugging, interactive windows, and other support for Python developers.

Python - Conda support   16.8.20241.2
Conda support for Python projects.

Python - Django support   16.8.20241.2
Provides templates and integration for the Django web framework.

Python - IronPython support   16.8.20241.2
Provides templates and integration for IronPython-based projects.

Python - Profiling support   16.8.20241.2
Profiling support for Python projects.

SQL Server Data Tools   16.0.62012.31170
Microsoft SQL Server Data Tools

Test Adapter for Boost.Test   1.0
Enables Visual Studio's testing tools with unit tests written for Boost.Test.  The use terms and Third Party Notices are available in the extension installation directory.

Test Adapter for Google Test   1.0
Enables Visual Studio's testing tools with unit tests written for Google Test.  The use terms and Third Party Notices are available in the extension installation directory.

ToolWindowHostedEditor   1.0
Hosting json editor into a tool window

TypeScript Tools   16.0.21016.2001
TypeScript Tools for Microsoft Visual Studio

Visual Basic Tools   3.8.0-5.20604.10+9ed4b774d20940880de8df1ca8b07508aa01c8cd
Visual Basic components used in the IDE. Depending on your project type and settings, a different version of the compiler may be used.

Visual F# Tools   16.8.0-beta.20507.4+da6be68280c89131cdba2045525b80890401defd
Microsoft Visual F# Tools

Visual Studio Code Debug Adapter Host Package   1.0
Interop layer for hosting Visual Studio Code debug adapters in Visual Studio

Visual Studio Container Tools Extensions   1.0
View, manage, and diagnose containers within Visual Studio.

Visual Studio Tools for CMake   1.0
Visual Studio Tools for CMake

Visual Studio Tools for Containers   1.0
Visual Studio Tools for Containers

Visual Studio Tools for Kubernetes   1.0
Visual Studio Tools for Kubernetes

Visual Studio Tools for Unity   4.8.2.0
Visual Studio Tools for Unity

VisualStudio.DeviceLog   1.0
Information about my package

VisualStudio.Foo   1.0
Information about my package

VisualStudio.Mac   1.0
Mac Extension for Visual Studio

Xamarin   16.8.000.261 (d16-8@bb99248)
Visual Studio extension to enable development for Xamarin.iOS and Xamarin.Android.

Xamarin Designer   16.8.0.507 (remotes/origin/d16-8@e87b24884)
Visual Studio extension to enable Xamarin Designer tools in Visual Studio.

Xamarin Templates   16.8.112 (86385a3)
Templates for building iOS, Android, and Windows apps with Xamarin and Xamarin.Forms.

Xamarin.Android SDK   11.1.0.26 (d16-8/a36ce73)
Xamarin.Android Reference Assemblies and MSBuild support.
    Mono: 5e9cb6d
    Java.Interop: xamarin/java.interop/d16-8@79d9533
    ProGuard: Guardsquare/proguard/proguard6.2.2@ebe9000
    SQLite: xamarin/sqlite/3.32.1@1a3276b
    Xamarin.Android Tools: xamarin/xamarin-android-tools/d16-8@2fb1cbc


Xamarin.iOS and Xamarin.Mac SDK   14.8.0.3 (c51fabee8)
Xamarin.iOS and Xamarin.Mac Reference Assemblies and MSBuild support.

Build Logs

Screenshots

Screenshot_20210121-211848

vs.

2021-01-21 21_17_38-Window

Workaround

Not yet.
@zetaFairlight zetaFairlight added s/unverified New report that has yet to be verified t/bug 🐛 labels Jan 22, 2021
@PureWeen
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@zetaFairlight do you have dark mode on? This is a known issue with dark mode

@PureWeen PureWeen added the s/needs-info ❓ A question has been asked that requires an answer before work can continue on this issue. label Jan 22, 2021
@zetaFairlight
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zetaFairlight commented Jan 22, 2021 •
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@PureWeen Yes, Visual Studio was in dark mode, but now I've switched to "blue" mode and I get the same results. Will keep trying.
EDIT: Interesting, I've changed the IDE theme to white, and while I was doing that I've forgot to update the Xamarin Forms nuget packages to version 5, and, to my surprise, I've saw that the problem persists even in version 4.8 somehow.

For the records, I'm always creating new projects.
It seems like something might be corrupted, or maybe is this particular phone. I will test it in another, but this is a good phone.

The layout code that should be created as a template is there, as far as I can see. But still only works on the emulator.

@MitchBomcanhao
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@zetaFairlight the visual studio theme is not relevant for this matter, he's asked about your phone's light/dark theme.

@zetaFairlight
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zetaFairlight commented Jan 22, 2021 •
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Yes, @MitchBomcanhao, that device was on dark mode. I will retry with the phone with dark mode off now.

@zetaFairlight
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zetaFairlight commented Jan 22, 2021 •
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Correct. It's working while the "light" mode is active in the phone.
I'll try to learn more about this problem. Thanks!

@PureWeen
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#12409

@danellisuk
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danellisuk commented Jul 9, 2022 •
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This issue is still a problem on Android using dark mode. The fix in #12409 was only for iOS. The problem is reproducible using both the Flyout and Tabbed templates in Visual Studio 2022, and the issue persists after updating the Xamarin packages to the latest versions:

  • Xamarin.Essentials 1.7.3
  • Xamarin.Forms 5.0.0.2478

image

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