topic Re: C# code stage system.data defaults to old version in Product Forum

C# code stage system.data defaults to old version

Dehli — Tue, 10 Sep 2024 07:32:21 GMT

I get the following error
Compiler error at line 0: The type name 'DataTable' could not be found in the namespace 'System.Data'. This type has been forwarded to assembly 'System.Data.Common, Version=0.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' Consider adding a reference to that assembly.

I have system.data in code options but it seems like it defaults to an old version.

Re: C# code stage system.data defaults to old version

Brigianakopec — Tue, 10 Sep 2024 17:44:43 GMT

Hi, I have seen this issue before.

Can you please confirm you're using the correct version of the .NET framework in your environment? Sometimes, Blue Prism might default to an older version of the framework, which might be causing the issue.

Re: C# code stage system.data defaults to old version

Dehli — Tue, 10 Sep 2024 17:59:25 GMT

How do i see what version i am using?

Re: C# code stage system.data defaults to old version

david.l.morris — Wed, 11 Sep 2024 03:25:38 GMT

Try the commands here: https://stackoverflow.com/questions/1565434/how-do-i-find-the-installed-net-versions

You're probably looking to make sure you have .NET Framework 4.7 and/or 4.8, depending on what Blue Prism version you're on.

Re: C# code stage system.data defaults to old version

Dehli — Wed, 11 Sep 2024 06:05:16 GMT

I have .NET 4.8.1 installed But if Blue prism defaults to an older version i need to tell it to use the new version somehow

Re: C# code stage system.data defaults to old version

david.l.morris — Wed, 11 Sep 2024 18:06:06 GMT

I would go ahead and try installing the .NET Framework version that your version of Blue Prism was designed for.

Here's what the article (linked below) essentially says:

For Blue Prism 6.0-6.7: .NET Framework 4.7
For Blue Prism 6.8+: .NET Framework 4.8

You can have both .NET Framework 4.7 and 4.8 installed.

What version of Blue Prism are you on?

Reference: Which .NET Framework versions does Blue Prism Enterprise support? :

Re: C# code stage system.data defaults to old version

Dehli — Thu, 12 Sep 2024 07:32:05 GMT

We are using blue prism 7.3.1 so i will try to install .net 4.8

Re: C# code stage system.data defaults to old version

Michael_S — Fri, 25 Oct 2024 11:54:04 GMT

Hey @Dehli - did you manage to get this sorted out?

Re: C# code stage system.data defaults to old version

Dehli — Mon, 28 Oct 2024 09:49:43 GMT

In the end i made it in visual studio and ran it as "Start Process Read Stderr and Stdout" from Utility - Environment