migrate_3_to_4 error_#2

erpnext@erp:~/frappe-bench$ ./scripts/install.sh migrate_3_to_4 /home/erpnext/erpnext
New python executable in env/bin/python2.7
Also creating executable in env/bin/python
Installing setuptools, pip...done.
remote: Reusing existing pack: 55840, done.
remote: Counting objects: 109, done.
remote: Compressing objects: 100% (109/109), done.
remote: Total 55949 (delta 50), reused 2 (delta 0)
Receiving objects: 100% (55949/55949), 22.18 MiB | 149 KiB/s, done.
Resolving deltas: 100% (39251/39251), done.
remote: Reusing existing pack: 113804, done.
remote: Counting objects: 32, done.
remote: Compressing objects: 100% (31/31), done.
remote: Total 113836 (delta 8), reused 0 (delta 0)
Receiving objects: 100% (113836/113836), 35.58 MiB | 176 KiB/s, done.
Resolving deltas: 100% (81031/81031), done.
remote: Reusing existing pack: 892, done.
remote: Total 892 (delta 0), reused 0 (delta 0)
Receiving objects: 100% (892/892), 255.84 KiB | 137 KiB/s, done.
Resolving deltas: 100% (616/616), done.
Wrote sites/assets/js/frappe-web.min.js - 63k
Wrote sites/assets/js/shopping-cart-web.min.js - 1k
Wrote sites/assets/js/erpnext.min.js - 12k
Wrote sites/assets/css/frappe.css - 211k
Wrote sites/assets/css/frappe-web.css - 162k
Wrote sites/assets/css/shopping-cart-web.css - 0k
Wrote sites/assets/js/editor.min.js - 26k
Wrote sites/assets/css/erpnext.css - 0k
Wrote sites/assets/js/frappe.min.js - 605k
Wrote sites/assets/js/erpnext-web.min.js - 0k
Wrote sites/assets/js/slickgrid.min.js - 102k
Wrote sites/assets/js/canvasResize.min.js - 22k
Traceback (most recent call last):
  File "scripts/3to4.py", line 32, in <module>
    migrate(args.site)
  File "scripts/3to4.py", line 23, in migrate
    add_to_installed_apps('frappe', rebuild_sitemap=False)
TypeError: add_to_installed_apps() got an unexpected keyword argument 'rebuild_site
map'
erpnext@erp:~/frappe-bench$