Generating attributes file
In MemoizeClassMapGenerator.php line 97:
[Error]
Class "Composer\ClassMapGenerator\ClassMapGenerator" not found
Exception trace:
at /Users/luke/Code/Php/swytch/chat/vendor/olvlvl/composer-attribute-collector/src/MemoizeClassMapGenerator.php:97
olvlvl\ComposerAttributeCollector\MemoizeClassMapGenerator->scanPaths() at /Users/luke/Code/Php/swytch/chat/vendor/olvlvl/composer-attribute-collector/src/ClassMapBuilder.php:53
olvlvl\ComposerAttributeCollector\ClassMapBuilder->buildClassMap() at phar:///usr/local/bin/composer/src/Composer/Plugin/PluginManager.php(273) : eval()'d code:115
olvlvl\ComposerAttributeCollector\Plugin_composer_tmp0::dump() at phar:///usr/local/bin/composer/src/Composer/Plugin/PluginManager.php(273) : eval()'d code:90
olvlvl\ComposerAttributeCollector\Plugin_composer_tmp0::onPostAutoloadDump() at n/a:n/a
call_user_func() at phar:///usr/local/bin/composer/src/Composer/EventDispatcher/EventDispatcher.php:202
Composer\EventDispatcher\EventDispatcher->doDispatch() at phar:///usr/local/bin/composer/src/Composer/EventDispatcher/EventDispatcher.php:125
Composer\EventDispatcher\EventDispatcher->dispatchScript() at phar:///usr/local/bin/composer/src/Composer/Autoload/AutoloadGenerator.php:431
Composer\Autoload\AutoloadGenerator->dump() at phar:///usr/local/bin/composer/src/Composer/Installer.php:341
Composer\Installer->run() at phar:///usr/local/bin/composer/src/Composer/Command/UpdateCommand.php:241
Composer\Command\UpdateCommand->execute() at phar:///usr/local/bin/composer/vendor/symfony/console/Command/Command.php:298
Symfony\Component\Console\Command\Command->run() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:1024
Symfony\Component\Console\Application->doRunCommand() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:299
Symfony\Component\Console\Application->doRun() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:335
Composer\Console\Application->doRun() at phar:///usr/local/bin/composer/vendor/symfony/console/Application.php:171
Symfony\Component\Console\Application->run() at phar:///usr/local/bin/composer/src/Composer/Console/Application.php:130
Composer\Console\Application->run() at phar:///usr/local/bin/composer/bin/composer:88
require() at /usr/local/bin/composer:29
running composer install with this composer.json: