Comment 5 for bug 1818370

- compat level is 12 but debhelper is >=9.

I uploaded to new queue the current git d962e210635cafed0129e529a526d10dc65c572d, after this change:

--- a/debian/changelog
+++ b/debian/changelog
@@ -1,4 +1,4 @@
-ubuntustudio-look (0.56) UNRELEASED; urgency=medium
+ubuntustudio-look (0.56) disco; urgency=medium

   [ Erich Eickmeyer ]
   * Added ubuntustudio-gnome-branding package
diff --git a/debian/control b/debian/control
index 4937bb5..7cfafe8 100644
--- a/debian/control
+++ b/debian/control
@@ -3,7 +3,7 @@ Section: x11
 Priority: optional
 XS-Python-Version: all
 Maintainer: Ubuntu Studio Developers <email address hidden>
-Build-Depends: debhelper (>= 9), libgdk-pixbuf2.0-dev, libglib2.0-bin,
+Build-Depends: debhelper (>= 12), libgdk-pixbuf2.0-dev, libglib2.0-bin,
                libxml2-utils, ruby-sass
 Standards-Version: 4.3.0
 Homepage: https://launchpad.net/ubuntustudio-look

hopefully it will clear new together with the missing grub dependency