The anti-forgery token could not be decrypted. 
If this application is hosted by a Web Farm or cluster,
ensure that all machines are running the same version of ASP.NET Web Pages and
that the <machineKey> configuration specifies explicit encryption and validation keys. 
AutoGenerate cannot be used in a cluster

Description: An unhandled exception occurred during the execution of the current web request. 
Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Web.Mvc.HttpAntiForgeryException: 
The anti-forgery token could not be decrypted.
If this application is hosted by a Web Farm or cluster, 
ensure that all machines are running the same version of ASP.NET Web Pages and that the <machineKey> configuration 
specifies explicit encryption and validation keys. AutoGenerate cannot be used in a cluster.

<system.web>
  <machineKey validationKey="mykey" decryptionKey="myotherkey" validation="SHA1" decryption="AES" />
</system.web>

The first preview of Entity Framework Core (EF Core) 8 is available on NuGet today!

Basic information

EF Core 8, or just EF8, is the successor to EF Core 7, and is scheduled for release in November 2023, at the same time as .NET 8.

EF8 currently targets .NET 6. This will likely be updated to .NET 8 as we near release.

EF8 will align with .NET 8 as a long-term support (LTS) release. See the .NET support policy for more information. 

Businesses need to develop a video to explain the flow of applications like online internet banking, 3D visuals of car interiors, etc. However, this makes the overall file size very heavy. In such cases, users can use this "Jquery Image Player". Though giving a feeling of a video player, this is an image based player with a look and feel of video player.

meSing.js is a JavaScript singing synthesis library that uses the Web Audio API's DSP capabilities in conjunction with the meSpeak.js speech synthesis library to provide a vocal synthesizer for the web. First, the lyrics with corresponding MIDI notes are parsed and fed to meSpeak.js; the resulting text-to-speech output is then converted into a series of AudioBufferSourceNodes, which are subsequently processed and adjusted for pitch, rhythm, and expression.  Demo

• An error occurred while generating the SSH keys. Please check that the environment is properly configured. Details: cat: /Users/cc/Library/Caches/Xamarin/XMA/Keys/1984b83a-dde9-4031-919d-b1d1b8411d0d: No such file or directory
• InvalidOperationException while debugging Xamarin Forms app
• Frame note in module in Xamarin Forms Android
• Internal compiler error is fixed and analysis for WDK completes as usual.
• We fixed an issue in the new Find in Files experience where hidden files and auto-generated files were not searchable.
• Fixed issue with deployment of UWP apps to remote machines where deployment fails with message "DEP0600: Deployment failed. DkmException - Error in the application."
• Local static variable not initialized in inlined function of class imported from dll
• VS 2019 16.5.X: Multiple startup projects while Live Visual Tree was last opened in a debug session crashes
• Fixed issues where for the C++ formatting indentation of new lines with only ending parenthesis.
• Fixed a bug preventing some users from installing 16.5
• Fix an issue where Visual Studio can crash when the display configuration changes.
• Fixed an issue causing slow downs when opening solutions that are impacting the IntelliSense code and related operations.
• Fixed a crash with the debugger that users can run into when the target application being debugged raises an exception.
• Added support for Xcode 11.4.

A simple utility to execute a callback when a webfont loads.  Demo

This uses the CSS Font Loading Module when available (currently in Chrome 35+ and Opera 22+). When that isn’t available, it uses a very similar approach to the one used in the TypeKit Web Font Loader (which is currently 7.1KB GZIP).

Basically, it creates an element with a font stack including the web font and a default serif/sans-serif typeface. It then uses a test string and measures the dimensions of the element at a certain interval. When the dimensions are different than the default fallback fonts, the font is considered to have loaded successfully.

If you’d like a full polyfill for the CSS Font Loading Module, follow along with Bram Stein’s Font Loader. I believe the specification has changed since he launched this polyfill, but he’s working on an updated version. 

AlloyUI is a framework built on top of YUI3 (JavaScript) that uses Bootstrap 3 (HTML/CSS) to provide a simple API for building high scalable applications  Demo

1. What is Power BI?
2. Service
3. Desktop
4. Mobile Apps
5. Solution Template
6. Devoloper
7. Power BI Embedded
8. Power BI Gateway: Data Security 

Summary of Notable New Features in 15.9

• You can now import and export an installation configuration file that specifies which workloads and components should be installed with an instance of Visual Studio.
• We have improved the debugging experience for NuGet packages using the new symbol package format (.snupkg).
• Step back in debugger is now available in C++ for Enterprise customers.
• C++ IntelliSense now responds to changes in the remote environment for both CMake and MSBuild projects targeting Linux.
• We have made updates to UWP Desktop Bridge framework packages and added support for ARM64 C++ Native Desktop scenarios.
• We added support for the range-v3 library with the MSVC 15.9 compiler.
• We fixed several bugs in the F# compiler and F# tools.
• Language service support for new TypeScript features for semantic file renaming and project references.
• Improved Node.js development by updating Vue.js templates and adding support for unit testing using the Jest framework.
• We added SharePoint 2019 project templates, so you can migrate existing SharePoint 2013 and 2016 projects to SharePoint 2019.
• Visual Studio Tools for Xamarin now supports Xcode 10.
• We made improvements to the Xamarin.Android build performance.
• We have added and improved features for Universal Windows Platform developers, including ARM64 support, the latest preview SDK, better debugging of Desktop Bridge applications, and XAML Designer improvements.
• Substantial improvements were made to the experience of using authenticated package feeds.
• There is now support for lock file to enable repeatable restore for PackageReference based projects.
• We have added support for the new license format for NuGet packages.
• We have introduced NuGet client policies in Visual Studio which enables you to lock down environments such that only trusted packages can be installed.
• We made the use of .NET Core within Visual Studio more predictable.

Top Issues Fixed in 15.9

• No way to change "Find All References" background color.
• "Visual C++ Resource Editor Package" load failed.
• VS2017 v15.8 Build does not start if XAML files are not manually saved first.
• Installation failed - manifest signature verification failed.
• Update 15.8.6 breaks Installer Projects.
• Scrolling up with the arrow key causes Visual Studio to page up.
• After updating to 15.8.1, data tip does not show when debugging.
• System.InvalidProgramException: Common Language Runtime detected an invalid program..
• Solution Explorer does not remain pinned after closing Visual Studio.
• Navigation bar in editor has trouble handling long method names.