Error using export to file

Version 4 V4 Issue
1

I have recently installed version 4.1.79 and now when I use database tools to export settings I get the following error.

A search of the net tells me this is something to do with .NET Framework so I have installed update 4.5.2 but that has not helped. Can somebody help with this?

[EDIT] not sure if it is relevant but database version has stayed at 78

2

Did you tried to reinstall 4.1.79?

3

I thought system.web.helpers was part of .net framework but it seems only full installs of .net framwork contains that assembly.

Maybe I need to manually release that file, I’ll quickly check that and release an update soon.