emacs cannot open load file

LC_ALL=C emacs --debug-init

Debugger entered--Lisp error: (file-error "Cannot open load file" "No such file or directory" "let-alist")
  require(let-alist)
  eval-buffer(#<buffer  *load*-777806> nil "/home/cweiske/.emacs.d/scripts/graphql-mode.el" nil t)  ; Reading at buffer position 1520
  load-with-code-conversion("/home/cweiske/.emacs.d/scripts/graphql-mode.el" "/home/cweiske/.emacs.d/scripts/graphql-mode.el" nil t)
  require(graphql-mode)
  eval-buffer(#<buffer  *load*> nil "/home/cweiske/.emacs" nil t)  ; Reading at buffer position 4231
  load-with-code-conversion("/home/cweiske/.emacs" "/home/cweiske/.emacs" t t)
  load("~/.emacs" t t)