Upgrading your app to use .NET Standard 2.0 with MvvmCross 6 involves several steps. Here's a detailed guide to help you through the process:
Step 1: Upgrade .NET Framework Version
Ensure your project targets at least .NET Framework 4.6.1. This is the minimum version required for compatibility with .NET Standard 2.0. If your project is currently using an older version, you'll need to upgrade it to 4.6.1 or higher. This step is crucial because .NET Standard 2.0 is supported by .NET Framework versions starting from 4.6.1[10].Step 2: Convert Project to .NET Standard
If your project is currently using Portable Class Libraries (PCLs) or older frameworks, you need to migrate it to .NET Standard 2.0. This involves changing the project type in Visual Studio. You can use the Upgrade Assistant tool in Visual Studio to help with this process. It provides options for in-place or side-by-side upgrades, which can be useful depending on your project's complexity and dependencies[4][6].Step 3: Update NuGet Packages
After converting your project to .NET Standard 2.0, update all NuGet packages to versions compatible with .NET Standard 2.0. This includes updating MvvmCross to version 6, which targets .NET Standard 2.0 by default[1][7]. Ensure that all other third-party libraries are also updated to versions that support .NET Standard 2.0.Step 4: Address Compatibility Issues
Some libraries might not have direct support for .NET Standard 2.0. In such cases, you may need to use multi-targeting or find alternative libraries that do support .NET Standard 2.0. Additionally, review your code for any platform-specific APIs that might not be available in .NET Standard 2.0 and refactor them accordingly[3][5].Step 5: Test and Validate
Once the upgrade is complete, thoroughly test your application to ensure that all features work as expected. This includes testing on different platforms if your app is cross-platform, such as Xamarin iOS and Android.By following these steps, you should be able to successfully upgrade your app to use .NET Standard 2.0 with MvvmCross 6.
Citations:[1] https://www.mvvmcross.com/documentation/upgrading/upgrade-to-mvvmcross-60
[2] https://learn.microsoft.com/en-us/dotnet/standard/net-standard
[3] https://www.reddit.com/r/dotnet/comments/z5luwl/general_advice_for_legacy_project_migration_to/
[4] https://devblogs.microsoft.com/dotnet/upgrade-assistant-now-in-visual-studio/
[5] https://www.reddit.com/r/dotnet/comments/wgwct9/what_is_the_use_case_for_netstandard21/
[6] https://learn.microsoft.com/en-us/answers/questions/669564/upgrading-from-net-framework-4-5-2-to-net-standard
[7] https://www.mvvmcross.com/mvvmcross-6.0.0-release/
[8] https://www.nuget.org/packages/MvvmCross/6.0.0
[9] https://stackoverflow.com/questions/52458088/unable-to-upgrade-mvvmcross-to-6-2-0
[10] https://blog.lhotka.net/2019/01/11/Migrating-from-.NET-to-.NET-Standard
[11] https://www.danielcrabtree.com/blog/314/upgrading-to-net-core-and-net-standard-made-easy