https://community.blueprism.com/t5/Product-Forum/Using-LINQ-in-Code-Stage/m-p/53740#M8370 Hi All,   I am trying to use the LINQ code in code stage of Blue Prism. Code is having no error but when I am trying to run it is giving following error: Description: Compiler error at top section line 7: A using namespace directive can only be applied to namespaces; 'System.Data.DataTable' is a type not a namespace Could you anyone can help me to solve it out. DLL is use are as follows: System.Core.dll ; System.dll ; System.Data.dll ; System.Xml.dll ; System.Drawing.dll ; System.Data.DataSetExtensions.dll Namespaces are as follows: System ; System.Drawing ;System.Data ; System.Linq ; System.Collections.Generic ; System.Data.DataTable Code Stage :  Coll2 = new DataTable(); Coll1 = new DataTable(); Coll2 = Coll1.Clone(); var Result = from num in Coll1.AsEnumerable() Select num.ToList(); // to select all the data from Coll1 input collection foreach(var res in Result) {     Coll2.ImportRow(res); }         Regards Jatin Kalra Sat, 23 Feb 2019 19:45:00 GMT Jatin__Kalra 2019-02-23T19:45:00Z https://community.blueprism.com/t5/Product-Forum/Using-LINQ-in-Code-Stage/m-p/53740#M8370 Hi All,   I am trying to use the LINQ code in code stage of Blue Prism. Code is having no error but when I am trying to run it is giving following error: Description: Compiler error at top section line 7: A using namespace directive can only be applied to namespaces; 'System.Data.DataTable' is a type not a namespace Could you anyone can help me to solve it out. DLL is use are as follows: System.Core.dll ; System.dll ; System.Data.dll ; System.Xml.dll ; System.Drawing.dll ; System.Data.DataSetExtensions.dll Namespaces are as follows: System ; System.Drawing ;System.Data ; System.Linq ; System.Collections.Generic ; System.Data.DataTable Code Stage :  Coll2 = new DataTable(); Coll1 = new DataTable(); Coll2 = Coll1.Clone(); var Result = from num in Coll1.AsEnumerable() Select num.ToList(); // to select all the data from Coll1 input collection foreach(var res in Result) {     Coll2.ImportRow(res); }         Regards Jatin Kalra Sat, 23 Feb 2019 19:45:00 GMT https://community.blueprism.com/t5/Product-Forum/Using-LINQ-in-Code-Stage/m-p/53740#M8370 Jatin__Kalra 2019-02-23T19:45:00Z https://community.blueprism.com/t5/Product-Forum/Using-LINQ-in-Code-Stage/m-p/53741#M8371 Try removing System.Data.DataTable as a namespace. Mon, 25 Feb 2019 20:42:00 GMT https://community.blueprism.com/t5/Product-Forum/Using-LINQ-in-Code-Stage/m-p/53741#M8371 AmiBarrett 2019-02-25T20:42:00Z