Add the subpackage to the setupbase.py

setupbase.py

@@ -107,6 +107,10 b' def find_packages():'
     add_package(packages, 'external')
     add_package(packages, 'gui')
     add_package(packages, 'gui.wx')
+    add_package(packages, 'frontend')
+    add_package(packages, 'frontend._process')
+    add_package(packages, 'frontend.wx')
+    add_package(packages, 'frontend.cocoa')
     add_package(packages, 'kernel', config=True, tests=True, scripts=True)
     add_package(packages, 'kernel.core', config=True, tests=True)
     add_package(packages, 'testing', tests=True)
@@ -229,4 +233,4 b' def check_for_dependencies():'
     check_for_sphinx()
     check_for_pygments()
     check_for_nose()
-    check_for_pexpect()
  No newline at end of file
+    check_for_pexpect()