Cannot add System.Core.dll reference

PanupongMakvic1 — Thu, 04 Jun 2020 05:56:00 GMT

Hi everyone,

I face with this issue which is very odd to me. Now I'm using Blue Prism 6.3

I want to use LINQ so basically I need add System.Core.dll as an assembly. It worked fine with the first Blue Prism Object that I implemented.
Later, I create a new object which refer exactly the same external reference as the one before and I found this error

Description: Compiler warning at top section line -6: The predefined type 'System.Runtime.CompilerServices.ExtensionAttribute' is defined in multiple assemblies in the global alias; using definition from 'c:\Windows\Microsoft.NET\Framework\v4.0.30319\mscorlib.dll'

this issue seems like it already refer to mscorlib.dll which already contains system.core as a namespace
what is strange is that why my first object is still working fine but this new object has error even all the same references.

Pls suggest me.Thank you guys

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Panupong Makvichian
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RE: Cannot add System.Core.dll reference

PanupongMakvic1 — Thu, 04 Jun 2020 05:58:00 GMT

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Panupong Makvichian
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Cannot add System.Core.dll reference

RE: Cannot add System.Core.dll reference