php - Cannot redeclare class AbstractFindAdapter -

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i have error in laravel install has cropped [seemingly] intermittently. follows below:

[2015-04-22 15:30:45] production.error: exception 'symfony\component\debug\exception\fatalerrorexception' message 'cannot redeclare class symfony\component\finder\adapter\abstractfindadapter' in /var/www/web/website/htdocs/vendor/symfony/finder/symfony/component/finder/adapter/abstractfindadapter.php:28 stack trace: #0 [internal function]: illuminate\exception\handler->handleshutdown() #1 {main} [] [] [2015-04-22 15:32:39] production.error: exception 'symfony\component\debug\exception\fatalerrorexception' message 'cannot redeclare class symfony\component\finder\adapter\abstractfindadapter' in /var/www/web/website/htdocs/vendor/symfony/finder/symfony/component/finder/adapter/abstractfindadapter.php:28 stack trace: #0 [internal function]: illuminate\exception\handler->handleshutdown() #1 {main} [] []

it seems coming vendor files, , based on how short stack trace there isn't lot me do...

i suppose question isn't "how make work" more, how go trouble shooting problem else repository? raising issue on github first port of call or error contain enough information me fix myself?

i'm not entirely sure, believe issue corrupt composer install. fix i:

  1. deleted whole vendor directory
  2. ran composer install again

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