Added support for older MySQL versions.

app/Providers/AppServiceProvider.php

@@ -2,6 +2,7 @@
 
 namespace App\Providers;
 
+use Illuminate\Support\Facades\Schema;
 use Illuminate\Support\ServiceProvider;
 use App\CustomValidator;
 use Validator;
@@ -18,6 +19,9 @@ class AppServiceProvider extends ServiceProvider
         Validator::resolver(function ($translator, $data, $rules, $messages) {
             return new CustomValidator($translator, $data, $rules, $messages);
         });
+
+        // Set default string length in order to run on older versions of MySQL
+        Schema::defaultStringLength(191);
     }
 
     /**