title: Why I found Composer error in larval when I run laravel project
body: <p>when I run composer update command in mac system. it gives error:</p>
  <pre><code>Loading composer repositories with package information
  Updating dependencies
  Your requirements could not be resolved to an installable set of packages.
  
    Problem 1
      - yajra/laravel-datatables-buttons[v4.10.0, ..., v4.13.3] require maatwebsite/excel ^3.0 -&gt; satisfiable by maatwebsite/excel[3.0.0-alpha, ..., 3.1.x-dev].
      - maatwebsite/excel[3.1.28, ..., 3.1.30] require phpoffice/phpspreadsheet 1.16.* -&gt; satisfiable by phpoffice/phpspreadsheet[1.16.0].
      - maatwebsite/excel[3.1.31, ..., 3.1.x-dev] require phpoffice/phpspreadsheet ^1.18 -&gt; satisfiable by phpoffice/phpspreadsheet[1.18.0].
      - maatwebsite/excel 3.1.27 requires phpoffice/phpspreadsheet ^1.16 -&gt; satisfiable by phpoffice/phpspreadsheet[1.16.0, 1.17.0, 1.17.1, 1.18.0].
      - maatwebsite/excel 3.1.26 requires phpoffice/phpspreadsheet ^1.15 -&gt; satisfiable by phpoffice/phpspreadsheet[1.15.0, ..., 1.18.0].
      - maatwebsite/excel[3.1.20, ..., 3.1.25] require phpoffice/phpspreadsheet ^1.14 -&gt; satisfiable by phpoffice/phpspreadsheet[1.14.0, ..., 1.18.0].
      - maatwebsite/excel[3.1.18, ..., 3.1.19] require phpoffice/phpspreadsheet ^1.10 -&gt; satisfiable by phpoffice/phpspreadsheet[1.10.0, ..., 1.18.0].
      - maatwebsite/excel[3.1.7, ..., 3.1.17] require phpoffice/phpspreadsheet ^1.6 -&gt; satisfiable by phpoffice/phpspreadsheet[1.6.0, ..., 1.18.0].
      - maatwebsite/excel[3.1.0, ..., 3.1.6] require phpoffice/phpspreadsheet ^1.4 -&gt; satisfiable by phpoffice/phpspreadsheet[1.4.0, ..., 1.18.0].
      - maatwebsite/excel[3.0.1, ..., 3.0.x-dev] require phpoffice/phpspreadsheet ^1.2 -&gt; satisfiable by phpoffice/phpspreadsheet[1.2.0, ..., 1.18.0].
      - maatwebsite/excel[3.0.0-alpha, ..., 3.0.0] require phpoffice/phpspreadsheet ^1.1 -&gt; satisfiable by phpoffice/phpspreadsheet[1.1.0, ..., 1.18.0].
      - phpoffice/phpspreadsheet[1.1.0, ..., 1.18.0] require ext-zip * -&gt; it is missing from your system. Install or enable PHP's zip extension.
      - Root composer.json requires yajra/laravel-datatables-buttons ~4.10 -&gt; satisfiable by yajra/laravel-datatables-buttons[v4.10.0, ..., v4.13.3].
  
  
  
  Use the option --with-all-dependencies (-W) to allow upgrades, downgrades and removals for packages currently locked to specific versions.
  </code></pre>