https://community.blueprism.com/t5/Product-Forum/C-class-library/m-p/119967#M53101 <P>Hi,&nbsp;</P><P>I have made a VB code which extracts digital signature(s) from a PDF document. After converting it to a C&nbsp; Class library, copied the DLL into BP program folder, adding Dll reference/namespace in Object, I get this error: Could not load file or assembly 'System.Runtime, version 7.0.0.0, culture=neutral, Public Token=xxx or one if it's dependencies. BP version is 7.3 and I have tried both with .Net framework 7 and 8.&nbsp;<BR /><BR />Anyone that can point me into right direction to make it work as in VB Studio?</P> Tue, 22 Apr 2025 12:00:54 GMT Rufus 2025-04-22T12:00:54Z https://community.blueprism.com/t5/Product-Forum/C-class-library/m-p/119967#M53101 <P>Hi,&nbsp;</P><P>I have made a VB code which extracts digital signature(s) from a PDF document. After converting it to a C&nbsp; Class library, copied the DLL into BP program folder, adding Dll reference/namespace in Object, I get this error: Could not load file or assembly 'System.Runtime, version 7.0.0.0, culture=neutral, Public Token=xxx or one if it's dependencies. BP version is 7.3 and I have tried both with .Net framework 7 and 8.&nbsp;<BR /><BR />Anyone that can point me into right direction to make it work as in VB Studio?</P> Tue, 22 Apr 2025 12:00:54 GMT https://community.blueprism.com/t5/Product-Forum/C-class-library/m-p/119967#M53101 Rufus 2025-04-22T12:00:54Z https://community.blueprism.com/t5/Product-Forum/C-class-library/m-p/120144#M53141 <P>Hi,</P><P>When I created new objects with new dependencies I had objects that use dependencies to DLLs newer than those present in the Blue prism installation folder. The errors you indicated will automatically appear.</P><P>Simone</P> Thu, 01 May 2025 13:21:55 GMT https://community.blueprism.com/t5/Product-Forum/C-class-library/m-p/120144#M53141 simone.tomaCNH 2025-05-01T13:21:55Z