This is not a question but an additional solution on question Error BC30652 System.Runtime.InteropServices after Update yesterday does pop up in Studio (Classic) as well.
Additional to Yoichi’s solution on StudioX which was
adding element
<AssemblyReference>System.Runtime.InteropServices</AssemblyReference>
inside the<sco:Collection x:TypeArguments="AssemblyReference">...</sco:Collection
for Studio (Classic) counts to add the same element inside
<scg:List x:TypeArguments=“AssemblyReference” Capacity=“…”>…</scg:List>