Exception doesn't show filename in laravel

I'm new to laravel and trying to develop a small site. I'm using laravel 5.1 on Debian Jessie on a vm, running php 5.6. I've made a mistake somewhere in the code, and when I load the page, I get this error:

Whoops, looks like something went wrong.
1/1 FatalErrorException in 6ca7e2ffd061baf9fd48533797a8e004 line 36: syntax error, unexpected ':', expecting ',' or ';'

    in 6ca7e2ffd061baf9fd48533797a8e004 line 36
    at FatalErrorException->__construct() in HandleExceptions.php line 133
    at HandleExceptions->fatalExceptionFromError() in HandleExceptions.php line 118
    at HandleExceptions->handleShutdown() in HandleExceptions.php line 0

I'm supposing that 6ca7e2ffd061baf9fd48533797a8e004 is a cached or compiled version of some php file, but I can't obviously tell which one. How can I troubleshoot this error?

via Chebli Mohamed