composer update error

$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
Nothing to install or update
Generating optimized autoload files

Illuminate\Foundation\ComposerScripts::postUpdate
PHP Warning: Uncaught ErrorException: require(C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer/../myclabs/deep-copy/src/DeepCopy/deep_copy.php): failed to open stream: No such file or directory in C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php:66
Stack trace:
#0 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php(66): Composer\Util\ErrorHandler::handle(2, 'require(C:\User...', 'C:\Users\Gary-C...', 66, Array)
#1 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php(66): require()
#2 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php(56): composerRequirec1eacf11190380a1fd3b9f0e78877bfb('6124b4c8570aa39...', 'C:\Users\Gary-C...')
#3 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\autoload.php(7): ComposerAutoloaderInitc1eacf11190380a1fd3b9f0e78877bfb::getLoader()
#4 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\laravel\framework\src in C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php on line 66

Warning: Uncaught ErrorException: require(C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer/../myclabs/deep-copy/src/DeepCopy/deep_copy.php): failed to open stream: No such file or directory in C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php:66
Stack trace:
#0 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php(66): Composer\Util\ErrorHandler::handle(2, 'require(C:\User...', 'C:\Users\Gary-C...', 66, Array)
#1 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php(66): require()
#2 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php(56): composerRequirec1eacf11190380a1fd3b9f0e78877bfb('6124b4c8570aa39...', 'C:\Users\Gary-C...')
#3 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\autoload.php(7): ComposerAutoloaderInitc1eacf11190380a1fd3b9f0e78877bfb::getLoader()
#4 C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\laravel\framework\src in C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php on line 66
PHP Fatal error: composerRequirec1eacf11190380a1fd3b9f0e78877bfb(): Failed opening required 'C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer/../myclabs/deep-copy/src/DeepCopy/deep_copy.php' (include_path='C:\xampp\php\PEAR') in C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php on line 66

Fatal error: composerRequirec1eacf11190380a1fd3b9f0e78877bfb(): Failed opening required 'C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer/../myclabs/deep-copy/src/DeepCopy/deep_copy.php' (include_path='C:\xampp\php\PEAR') in C:\Users\Gary-Carvajal\Documents\GitHub\blsempl_unah\vendor\composer\autoload_real.php on line 66

When updating the composer gives me this error if someone has the solution please could you help me......

Start with the reported composer update output and vendor/composer/autoload_real.php at line 66, focusing on the missing myclabs/deep-copy/src/DeepCopy/deep_copy.php path. Reproduce the dependency installation failure and determine what repository-level change, if any, makes Composer complete without the missing-file fatal error.