Julia OptimalControl Package: MethodError with `String(::Tuple{...})` in `CTDirect`...

ERROR: "/tmp/jl_F8q8cm/Registry.toml": No such file in Julia REPL...

What does runtests.jl do in Julia?...

What is the difference between Julia and Julia Pro?...

How to detach a package without restarting...

Julia: How can I update my published julia package?...

Cannot install any package in Julia...

Can not install julia packages...

Julia `Pkg.checkout` causing `UndefVarError: checkout not defined`...