Merge pull request #21538 from unoplatform/mergify/bp/release/stable/6.3/pr-21537

docs(troubleshooting): Add guidance to use `dotnet workload repair` (backport #21537)

Author: agneszitte

doc/articles/common-issues-all-ides.md

@@ -71,3 +71,13 @@ For instance:
 ## Abnormally long build times when using Roslyn analyzers
 
 It is a good practice to use Roslyn analyzers to validate your code during compilation, but some generators may have difficulty handling the source generated by the Uno Platform (one notable example is [GCop](https://github.com/Geeksltd/GCop)). You may need to disable those for Uno projects or get an update from the analyzer's vendor.
+
+## Build errors with .NET workloads
+
+If you encounter errors such as: `error MSB4022: The result "" of evaluating the value "$(MonoTargetsTasksAssemblyPath)" of the "AssemblyFile" attribute in element <UsingTask> is not valid.`, this usually indicates a problem with your .NET workloads installation. If `uno-check` does not report issues but your project still fails to build, try running:
+
+  ```dotnetcli
+  dotnet workload repair
+  ```
+
+This command can repair missing or misconfigured workload components.