diff --git a/installer/snappy/snapcraft.yaml b/installer/snappy/snapcraft.yaml
index 5d1505f4..e253522e 100644
--- a/installer/snappy/snapcraft.yaml
+++ b/installer/snappy/snapcraft.yaml
@@ -19,10 +19,10 @@ parts:
     source: .
     organize:
       filebot: filebot
+    after: [desktop-gtk2]
   java:
     plugin: nil
     stage-packages: [openjdk-8-jre, openjfx, jayatana]
-    after: [desktop-gtk2]
   mediainfo:
     plugin: nil
     stage-packages: [libmediainfo0v5, libchromaprint-tools]
diff --git a/source/net/filebot/gio/PlatformGVFS.java b/source/net/filebot/gio/PlatformGVFS.java
index 6f6e2cc2..b19d3bb3 100644
--- a/source/net/filebot/gio/PlatformGVFS.java
+++ b/source/net/filebot/gio/PlatformGVFS.java
@@ -9,6 +9,10 @@ public class PlatformGVFS implements GVFS {
 	private final File gvfs;
 
 	public PlatformGVFS(File gvfs) {
+		if (gvfs.list() == null) {
+			throw new IllegalArgumentException(gvfs.getPath() + " is not a valid directory");
+		}
+
 		this.gvfs = gvfs;
 	}