Just pasting errors is not enough for me to help you.
I have to assume that you did
remove ORCA
ok.
I get the same, so I did a add ORCA.
I don’t know if it is needed but add also PlotlyJS:
import Pkg; Pkg.add("PlotlyJS")
This is the full command list in a new REPL:
import Pkg; Pkg.add("PlotlyJS")
import Pkg; Pkg.add("ORCA")
using Plots
plotlyjs()
x=-3:0.1:3
f(x)=x^2
y=f.(x)
plot(x,y,label="line")
scatter!(x,y,label="point")
title!("PlotlyJS()")
Looking at your former threads I still must say, that something is terrible wrong with your Windows system. For me your odyssey started with this thread:
And all the threads with package problems somehow ended without a solution, isnt it?