diff --git a/src/Installer.php b/src/Installer.php
index 92129f2..4bc3449 100755
--- a/src/Installer.php
+++ b/src/Installer.php
@@ -287,12 +287,17 @@ public function install() {
    *   The path list.
    */
   public function getSitesPublicFilesPath() {
-    $finder = new Finder();
-    $finder->in($this->appDir . '/sites')
-      ->depth(0);
-
     $directories = array();
 
+    try {
+      $finder = new Finder();
+      $finder->in($this->appDir . '/sites')
+          ->depth(0);
+    }
+    catch (\Exception $e) {
+      return $directories;
+    }
+
     /** @var \Symfony\Component\Finder\SplFileInfo $directory */
     foreach ($finder->directories() as $directory) {
       $publicFilesPath = 'sites/' . $directory->getFilename() . '/files';