# Rosyln error

Within the Package Manager Console in Visual Studio type the following - **Remember the -r flag!**

`Update-Package Microsoft.CodeDom.Providers.DotNetCompilerPlatform -r`

![](https://4182918922-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-MLIxsxy-PG49XtZX5uS%2F-MLwAE_0EXr12yCDaltK%2F-MLwAXV6zEp_NGrxWZl4%2FrosylnError.png?alt=media\&token=cb1bf2ed-8e6b-4f25-85fc-543edf70329f)