topic RE: Type 'HashSet' not defined in Product Forum

Type 'HashSet' not defined

NicholasZejdlik — Wed, 19 Aug 2020 15:08:00 GMT

I'm attempting to use a HashSet in a Blue Prism code stage, but it keeps coming up with an error saying that "Type 'HashSet' is not defined". The specific line of code that is generating the error is this:

Dim Values As New System.Collections.Generic.HashSet(Of Object)

I have System.Collections.Generic in the NameSpace imports, and System.Collections.dll in the references list. I'm on Blue Prism version 5.24, which according to System.Environment.Version is using .net framework 4.0. If I take this line of code and slap it in a Visual Studio project targeting framework 4.0, it compiles just fine.

Is there something that I'm missing? I can workaround it by using a Dictionary instead, but I'm curious why this won't compile.

------------------------------
Nicholas Zejdlik
RPA Developer
------------------------------

RE: Type 'HashSet' not defined

james.man — Fri, 21 Aug 2020 00:33:00 GMT

Hello,

I am able to get this to compile with the following:

------------------------------
James Man
Professional Services
Blue Prism
Asia/Hong_Kong
------------------------------

RE: Type 'HashSet' not defined

NicholasZejdlik — Fri, 21 Aug 2020 11:29:00 GMT

Thanks, I was missing System.Core.dll.

------------------------------
Nicholas Zejdlik
RPA Developer
------------------------------