ComposerのupdateでCall to undefined method Illuminate\Foundation\Application::getCachedCompilePath()と出るときの対処

PHP Fatal error:  Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath() in /Users/xxxxxxxx/vendor/laravel/framework/src/Illuminate/Foundation/Console/ClearCompiledCommand.php on line 28



  [Symfony\Component\Debug\Exception\FatalErrorException]                             
  Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath()  

ここで親切な回答が。
[SOLVED] Call to undefined method Illuminate\Foundation\Application::getCachedCompilePath() - Laravel.IO - The Official Laravel PHP Framework Community Portal

Delete the vendor/compiled.php and run composer update again.

だそうです。

$ rm vendor/compiled.php 

やってみる。

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

動いた！