PHPCS Coding Standard Issue

FILE: /home/drupal/myproject/PDF_using_mPDF/pdf_using_mpdf.info.yml
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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 1 | WARNING | Remove "version" from the info file, it will be added by drupal.org packaging automatically
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FILE: /home/drupal/myproject/PDF_using_mPDF/pdf_using_mpdf.module
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FOUND 4 ERRORS AND 1 WARNING AFFECTING 5 LINES
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  1 | ERROR   | [x] The PHP open tag must be followed by exactly one blank line
  7 | ERROR   | [x] When importing a class with "use", do not include a leading \
  8 | ERROR   | [x] When importing a class with "use", do not include a leading \
 13 | ERROR   | [x] Namespaced classes/interfaces/traits should be referenced with use statements
 34 | WARNING | [ ] Only string literals should be passed to t() where possible
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FILE: /home/drupal/myproject/PDF_using_mPDF/src/Conversion/ConvertToPdf.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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 16 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
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FILE: /home/drupal/myproject/PDF_using_mPDF/src/Controller/GeneratePdf.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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 20 | WARNING | The class short comment should describe what the class does and not simply repeat the class name
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FILE: /home/drupal/myproject/PDF_using_mPDF/pdf_using_mpdf.install
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FOUND 2 ERRORS AND 2 WARNINGS AFFECTING 4 LINES
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  1 | ERROR   | [x] Missing file doc comment
  3 | ERROR   | [x] When importing a class with "use", do not include a leading \
 25 | WARNING | [x] A comma should follow the last multiline array item. Found: ]
 39 | WARNING | [x] A comma should follow the last multiline array item. Found: ]
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