Upgraded to Laravel 5.6

app/Config/logging.php

@@ -0,0 +1,74 @@
+<?php
+
+use Monolog\Handler\StreamHandler;
+
+/**
+ * Logging configuration options.
+ *
+ * Changes to these config files are not supported by BookStack and may break upon updates.
+ * Configuration should be altered via the `.env` file or environment variables.
+ * Do not edit this file unless you're happy to maintain any changes yourself.
+ */
+
+return [
+
+    // Default Log Channel
+    // This option defines the default log channel that gets used when writing
+    // messages to the logs. The name specified in this option should match
+    // one of the channels defined in the "channels" configuration array.
+    'default' => env('LOG_CHANNEL', 'single'),
+
+    // Log Channels
+    // Here you may configure the log channels for your application. Out of
+    // the box, Laravel uses the Monolog PHP logging library. This gives
+    // you a variety of powerful log handlers / formatters to utilize.
+    // Available Drivers: "single", "daily", "slack", "syslog",
+    //                    "errorlog", "monolog",
+    //                    "custom", "stack"
+    'channels' => [
+        'stack' => [
+            'driver' => 'stack',
+            'channels' => ['single'],
+        ],
+
+        'single' => [
+            'driver' => 'single',
+            'path' => storage_path('logs/laravel.log'),
+            'level' => 'debug',
+        ],
+
+        'daily' => [
+            'driver' => 'daily',
+            'path' => storage_path('logs/laravel.log'),
+            'level' => 'debug',
+            'days' => 7,
+        ],
+
+        'slack' => [
+            'driver' => 'slack',
+            'url' => env('LOG_SLACK_WEBHOOK_URL'),
+            'username' => 'Laravel Log',
+            'emoji' => ':boom:',
+            'level' => 'critical',
+        ],
+
+        'stderr' => [
+            'driver' => 'monolog',
+            'handler' => StreamHandler::class,
+            'with' => [
+                'stream' => 'php://stderr',
+            ],
+        ],
+
+        'syslog' => [
+            'driver' => 'syslog',
+            'level' => 'debug',
+        ],
+
+        'errorlog' => [
+            'driver' => 'errorlog',
+            'level' => 'debug',
+        ],
+    ],
+
+];