Have you tried sudo apt-get update
On Tuesday, May 26, 2020 at 10:49:46 PM UTC+9, Mohit Shah wrote: > > I am getting the following error while I was following steps through sympy > document. Please help to resolve this error. > Thanks > > [image: SympyError.PNG] > > -- You received this message because you are subscribed to the Google Groups "sympy" group. To unsubscribe from this group and stop receiving emails from it, send an email to sympy+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/sympy/fdd924b9-3a14-493e-89be-7e58dda86abd%40googlegroups.com.
