bug#45121: 27.1; gnu-elpa: "Can’t find the autoload call!"

[Simen Heggestøyl]

After installing gnu-elpa from GNU ELPA, I tried running 'M-x sml-mode',
which resulted in the following error:

Debugger entered--Lisp error: (error "Can’t find the autoload call!")
  signal(error ("Can’t find the autoload call!"))
  error("Can't find the autoload call!")
  gnu-elpa--autoloaded-function()
  gnu-elpa--perform-autoload()
  byte-code("\300\301!\210\302 \207" [require gnu-elpa-utils 
gnu-elpa--perform-autoload] 2)
  autoload-do-load((autoload "gnu-elpa" "Major mode for editing Standard ML 
code.\nThis mode..." t nil) sml-mode)
  command-execute(sml-mode record)
  execute-extended-command(nil "sml-mode" "sml-mo")
  funcall-interactively(execute-extended-command nil "sml-mode" "sml-mo")
  call-interactively(execute-extended-command nil nil)
  command-execute(execute-extended-command)

Not sure whether that's a bug or if I'm using the package wrong.