Odoo 8.0 报价单不能发送邮件

[gene8508]

安装新的odoo 8.0,其他功能都正常。就是报价单及合同等不能以邮件的方式发送了。
请各位大神帮忙看看，是什么问题。
报价单里，也不能转成PDF。wkhtmltopdf已安装。在系统设置里，也设置的路径。

Traceback (most recent call last):
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\http.py", line 500, in _handle_exception
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\http.py", line 517, in dispatch
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\http.py", line 283, in _call_function
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\service\model.py", line 113, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\http.py", line 280, in checked_call
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\http.py", line 733, in call
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\http.py", line 376, in response_wrap
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\web\controllers\main.py", line 944, in call_kw
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\web\controllers\main.py", line 936, in _call_kw
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\api.py", line 237, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\email_template\wizard\mail_compose_message.py", line 54, in default_get
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\api.py", line 237, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\email_template\wizard\mail_compose_message.py", line 103, in onchange_template_id
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\api.py", line 237, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\email_template\wizard\mail_compose_message.py", line 167, in generate_email_for_composer_batch
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\api.py", line 237, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\email_template\email_template.py", line 515, in generate_email_batch
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\api.py", line 237, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\report\models\report.py", line 263, in get_pdf
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\api.py", line 237, in wrapper
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\report\models\report.py", line 436, in _run_wkhtmltopdf
  File "D:\Program Files\Odoo 8.0-20141009-000215\server\openerp\addons\report\models\report.py", line 51, in _get_wkhtmltopdf_bin
  File "D:\Program Files\Odoo 8.0-20141009-000215\server.\openerp\tools\which.py", line 148, in which
IOError: [Errno 2] command not found: 'wkhtmltopdf'