'System.Text.RegularExpressions does not exist' in .csx files

[remcoros]

Environment data

dotnet --info output:

.NET Command Line Tools (2.0.0-preview3-006474)

Product Information:
Version: 2.0.0-preview3-006474
Commit SHA-1 hash: 3aa22300ac

Runtime Environment:
OS Name: Windows
OS Version: 10.0.15063
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\2.0.0-preview3-006474\

Microsoft .NET Core Shared Framework Host

Version : 2.0.0-preview3-25415-01
Build : 0fb328316c72fef971a096d14f93b2474290210e

VS Code version: 1.13.1
C# Extension version: 1.10.0

Steps to reproduce

• Create a .csx file and use 'System.Text.RegularExpressions' like in the screenshot below

Expected behavior

No errors

Actual behavior

I'm not sure if this is even valid in .csx files. I read the content of this .csx file in a powershell script and use Add-Type to run it (see: https://github.com/remcoros/til). It runs fine from powershell.

If you have an idea and can point me in the direction, I could look into a fix.

[filipw]

Thanks for the report - this is indeed a bug.
I have a fix locally already, but I need to make sure that this will not break other things accidentally 😀

[remcoros]

ah, that's quick 👍 nice.