Flowchart: Expression Activity type ‘CSharpValue1' requires compilation in order to run. Please ensure that the workflow has been compiled. System.NotSupportedException: Expression Activity type 'CSharpValue1’ requires compilation in order to run

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The screenshot shows the UiPath Studio interface with an error message in the output panel indicating that certain workflows have not been compiled. (Captioned by AI)
The screenshot shows the UiPath Studio interface with an error message in the output panel indicating that certain workflows have not been compiled. (Captioned by AI)2556×1542 190 KB

Hie. I recently migrated from Windows Legacy. When trying to run my robot its now saying
. Flowchart: Expression Activity type ‘CSharpValue1' requires compilation in order to run. Please ensure that the workflow has been compiled. System.NotSupportedException: Expression Activity type 'CSharpValue1’ requires compilation in order to run. Please ensure that the workflow has been compiled. at System.Activities.Expressions.CompiledExpressionInvoker.InvokeExpression(ActivityContext activityContext)
at Microsoft.CSharp.Activities.CSharpValue1.Execute(CodeActivityContext context) at System.Activities.Runtime.ActivityExecutor.ExecuteInResolutionContext[T](ActivityInstance parentInstance, Activity1 expressionActivity)
at System.Activities.Variable`1.PopulateDefault(ActivityExecutor executor, ActivityInstance parentInstance, Location location)
at System.Activities.ActivityInstance.ResolveVariable(Variable variable, ActivityExecutor executor)
at System.Activities.ActivityInstance.ResolveVariables(ActivityExecutor executor)
at System.Activities.Runtime.ActivityExecutor.ExecuteActivityWorkItem.ExecuteBody(ActivityExecutor executor, BookmarkManager bookmarkManager, Location resultLocation)

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@Tapiwa,

Try updating all the packages if the project to latest possible version.

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What expression is failing? Debug and observe where it is failing. I think in the expression of Flow Decision.
Make sure the quotes and methods are correct.

For example, the issue may be reproducible with this expression: "Dict["Value1"].toString()"

But it may work fine with "Dict["Value1"].ToString()" (if the project is in C#, the expressions are case sensitive)

Also, try in a Studio 24.10.8 https://download.uipath.com/versions/24.10.8/UiPathStudio.msi