Hi, welcome Julia.
You don't need to install julia separately. Juno has one in it with all the
required packages. Somehow, your installation of Juno is missing Requires
package.
First, in Juno press Ctrl+Space, enter `Julia: open a new terminal repl` and
click to what shows up to open julia in console mode.
Second, in julia repl, try `Pkg.update()` .
Third, when it finishes with success close everything and reopen Juno.
Fourth, if it still fails, then open up the julia repl again and do
`Pkg.add("Requires")` .
Last, when it finishes,close everything and reopen Juno, see if it starts
correctly.
If it still shows error please ask again.
Note:Omit quotation(`) while writing.
