'IServiceProvider' does not contain a definition for 'GlobalProvider' and no extension method 'GlobalProvider' accepting a first argument of type 'IServiceProvider'

I'm new to C#. Please help me with the following code

using EnvDTE;

DTE dte = (DTE)ServiceProvider.GlobalProvider.GetService(typeof(DTE));
Project project = dte.ActiveDocument.ProjectItem.ContainingProject;

But I get the error 'IServiceProvider' does not contain a definition for 'GlobalProvider' and no extension method 'GlobalProvider' accepting a first argument of type 'IServiceProvider'.

I could not figure out the reason for this error. Please let me know the cause of the error.