fix: fixed imports

frappe/commands/translate.py

@@ -1,6 +1,7 @@
 from __future__ import unicode_literals, absolute_import, print_function
 import click
 from frappe.commands import pass_context, get_site
+from frappe.exceptions import SiteNotSpecifiedError
 
 # translation
 @click.command('build-message-files')

frappe/commands/utils.py

@@ -5,6 +5,7 @@ import click
 import json, os, sys, subprocess
 from distutils.spawn import find_executable
 import frappe
+from frappe.exceptions import SiteNotSpecifiedError
 from frappe.commands import pass_context, get_site
 from frappe.utils import update_progress_bar, get_bench_path
 from frappe.utils.response import json_handler