Console Output

+ latexmk -pdf MLS.tex
Latexmk: This is Latexmk, John Collins, 26 Dec. 2019, version: 4.67.
Rule 'pdflatex': The following rules & subrules became out-of-date:
      'pdflatex'
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Run number 1 of rule 'pdflatex'
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Running 'pdflatex  -recorder  "MLS.tex"'
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Latexmk: applying rule 'pdflatex'...
This is pdfTeX, Version 3.14159265-2.6-1.40.21 (TeX Live 2020) (preloaded format=pdflatex)
 restricted \write18 enabled.
entering extended mode
(./MLS.tex
LaTeX2e <2020-02-02> patch level 5
L3 programming layer <2020-04-06>
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Document Class: report 2019/12/20 v1.4l Standard LaTeX document class
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Package tocloft Warning: \@starttoc has already been redefined; tocloft bailing
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! LaTeX Error: File `cleveref.sty' not found.

Type X to quit or <RETURN> to proceed,
or enter new name. (Default extension: sty)

Enter file name: 
! Emergency stop.
<read *> 
         
l.142 \def
          \autoref#1{\errmessage{You are not supposed to use \autoref; use \...

!  ==> Fatal error occurred, no output PDF file produced!
Transcript written on MLS.log.
Latexmk: Missing input file: 'cleveref.sty' from line
  '! LaTeX Error: File `cleveref.sty' not found.'
Collected error summary (may duplicate other messages):
  pdflatex: Command for 'pdflatex' gave return code 1
      Refer to 'MLS.log' for details
Latexmk: Use the -f option to force complete processing,
 unless error was exceeding maximum runs, or warnings treated as errors.
=== TeX engine is 'pdfTeX'
Latexmk: Errors, so I did not complete making targets