Laravel 4: Fatal error: Class 'Patchwork\Utf8\Bootup' not found in autoload.php

Question

I added "cviebrock/image-validator": "1.0.*" to require section of composer.json. After, I ran composer update, I am getting this Fatal error.

:::ERROR:::

Fatal error: Class 'Patchwork\Utf8\Bootup' not found in F:\xampp\htdocs\project\
bootstrap\autoload.php on line 46
Script php artisan clear-compiled handling the post-update-cmd event returned wi
th an error



  [RuntimeException]
  Error Output:



update [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--lock]
 [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--with-
dependencies] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [packages1] ... [
packagesN]

:::END of ERROR:::

:::COMPOSER.JSON Require section:::

"require": {
  "intervention/image": "2.*",
  "cviebrock/image-validator": "1.0.*"
},

I need help in rectifying this fatal error.

Thanks & Regards,

Michael Sangma

Solution

This error seems to me like there is no patchwork/utf8 package installed.

See in your vendor folder whether the package exists or add in the require section in your composer.json file: "patchwork/utf8": "1.1.*" and then do composer update.