Don't tell people to use Pkg to install Pkg (#53197)

base/loading.jl

@@ -1885,10 +1885,14 @@ function __require(into::Module, mod::Symbol)
  end
  end
  hint_message = hint ? ", maybe you meant `import/using $(dots)$(mod)`" : ""
- start_sentence = hint ? "Otherwise, run" : "Run"
- throw(ArgumentError("""
- Package $mod not found in current path$hint_message.
- - $start_sentence `import Pkg; Pkg.add($(repr(String(mod))))` to install the $mod package."""))
+ install_message = if mod != :Pkg
+ start_sentence = hint ? "Otherwise, run" : "Run"
+ "\n- $start_sentence `import Pkg; Pkg.add($(repr(String(mod))))` to install the $mod package."
+ else # for some reason Pkg itself isn't availability so do not tell them to use Pkg to install it.
+ ""
+ end
+
+ throw(ArgumentError("Package $mod not found in current path$hint_message.$install_message"))
  else
  manifest_warnings = collect_manifest_warnings()
  throw(ArgumentError("""