add error to install

src/Handler/Install/Show.php

@@ -23,13 +23,18 @@ class Show extends Main
             $hasOpenSsl = $return === 0;
         }
 
+        /* @var \Aura\Session\Session $session */
+        $session = $this->get('session');
+        $segment = $session->getSegment('main');
+
         $data = [
             'hasExecEnabled' => $execEnabled,
             'hasOpenSsl' => $hasOpenSsl,
             'hasOpenSslExtension' => extension_loaded('openssl'),
             'hasZipExtension' => extension_loaded('zip'),
             'hostname' => parse_url($_SERVER['HTTP_HOST'], PHP_URL_HOST),
-            'hostnameWithPort' => $_SERVER['HTTP_HOST']
+            'hostnameWithPort' => $_SERVER['HTTP_HOST'],
+            'error' => $segment->getFlash('error')
         ];
 
         return $this->render('install.html.twig', $data);

views/install.html.twig

@@ -11,6 +11,13 @@
                     <div class="row">
                         <h3>Checking for extensions and settings</h3>
                     </div>
+                    <div class="row">
+                        {% if error %}
+                            <div class="alert alert-warning" role="alert">
+                                {{ error }}
+                            </div>
+                        {% endif %}
+                    </div>
                     <div class="row">
                         <table class="table">
                             <tbody>