在odoo 8 qweb报价中我使用xml中的自定义css样式，
当我选择多个引文并点击打印时，我收到如下错误。
这是我模块的“view”文件夹中的原始文件。
<?xml version="1.0" encoding="utf-8"?>
<openerp>
<data>
<template id="sale_account_report1">
<!-- Multicompany -->
<t t-if="o and 'company_id' in o">
<t t-set="company" t-value="o.company_id"></t>
</t>
<t t-if="not o or not 'company_id' in o">
<t t-set="company" t-value="res_company"></t>
</t>
<div class="header">
<div class="row">
<div class="col-xs-3">
<img t-if="company.logo" t-att-src="'data:image/png;base64,%s' % company.logo" style="max-height: 45px;"/>
</div>
</div>
<div class="row zero_min_height">
<div class="col-xs-12">
<div style="border-bottom: 1px solid black;"></div>
</div>
</div>
<div class="col-xs-5 pull-right">
<strong><span t-field="o.partner_id.name"/></strong>
<span t-field="o.partner_id.phone"/>
</div>
</div>
<div class="footer">
<div class="text-center" style="border-top: 1px solid black;">
<ul t-if="not company.custom_footer" class="list-inline">
<li t-if="company.phone">Phone: <span t-field="company.phone"/></li>
<li t-if="company.fax and company.phone">&bull;</li>
<li t-if="company.fax">Fax: <span t-field="company.fax"/></li>
<li t-if="company.email">&bull;</li>
<li t-if="company.email">Email: <span t-field="company.email"/></li>
<li t-if="company.website">&bull;</li>
<li t-if="company.website">Website: <span t-field="company.website"/></li>
</ul>
<t t-if="company.custom_footer">
<span t-raw="company.rml_footer"/>
</t>
<ul class="list-inline">
<li>Page:</li>
<li><span class="page"/></li>
<li>/</li>
<li><span class="topage"/></li>
</ul>
</div>
</div>
<div class="page">
<h3 align="center">Sales Order</h3>
<div class="row mt32 mb32" id="informations">
<div t-if="o.client_order_ref" class="col-xs-3">
<strong>Your Reference:</strong>
<p t-field="o.client_order_ref"/>
</div>
<div t-if="o.name" class="col-xs-4">
<strong t-if="o.state not in ['draft','sent']">Order N°: </strong>
<strong t-if="o.state in ['draft','sent']">Quotation N°: </strong>
<p t-field="o.name"/>
</div>
<div t-if="o.date_order" class="col-xs-4">
<strong t-if="o.state not in ['draft','sent']">Date Ordered:</strong>
<strong t-if="o.state in ['draft','sent']">Quotation Date:</strong>
<p t-field="o.date_order"/>
</div>
<div t-if="o.user_id.name" class="col-xs-4">
<strong>Total Articles:</strong>
<div t-esc="get_qty(o.order_line)"/>
</div>
</div>
<table class="table table-condensed">
<thead>
<tr>
<th>No.</th>
<th>Description</th>
<th class="text-right">Unit Price</th>
<th class="text-right">Quantity</th>
<th class="text-right">Total</th>
</tr>
</thead>
<tbody class="sale_tbody">
<tr t-foreach="o.order_line" t-as="l">
<td>
<span t-esc="get_no(o.name)"/>
</td>
<td>
<span t-field="l.name"/>
</td>
<td class="text-right">
<span t-field="l.price_unit"/>
</td>
<td class="text-right">
<span t-field="l.product_uom_qty"/>
<span groups="product.group_uom" t-field="l.product_uom"/>
</td>
<td class="text-right">
<span t-field="l.price_subtotal"
t-field-options='{"widget": "monetary", "display_currency": "o.pricelist_id.currency_id"}'/>
</td>
</tr>
</tbody>
</table>
<div class="row">
<div class="col-xs-4 pull-right">
<table class="table table-condensed">
<tr class="border-black">
<td><strong>Total</strong></td>
<td class="text-right">
<span t-field="o.amount_untaxed"
t-field-options='{"widget": "monetary", "display_currency": "o.pricelist_id.currency_id"}'/>
</td>
</tr>
<tr>
<td>Taxes</td>
<td class="text-right">
<span t-field="o.amount_tax"
t-field-options='{"widget": "monetary", "display_currency": "o.pricelist_id.currency_id"}'/>
</td>
</tr>
<tr class="border-black">
<td><strong>This Invoice Total</strong></td>
<td class="text-right">
<span t-field="o.amount_total"
t-field-options='{"widget": "monetary", "display_currency": "o.pricelist_id.currency_id"}'/>
</td>
</tr>
<tr t-if="o.state in ['draft','sent']" class="border-black">
<td><strong>Overdue Payment</strong></td>
<td class="text-right">
<span t-field="o.partner_id.credit"
t-field-options='{"widget": "monetary", "display_currency": "o.pricelist_id.currency_id"}'/>
</td>
</tr>
<tr t-if="o.state in ['draft','sent']" class="border-black">
<td><strong>Total Amount Due</strong></td>
<td class="text-right">
<span t-raw='o.amount_total + o.partner_id.credit'
t-raw-options='{"widget": "monetary", "display_currency": "o.pricelist_id.currency_id"}'/>
</td>
</tr>
</table>
</div>
</div>
<p t-field="o.note" />
<p t-if="o.payment_term">
<strong>Payment Term:</strong>
<span t-field="o.payment_term"/>
</p>
<div class="oe_structure"/>
</div>
</template>
<template id="sale_account_report.report_saleorder_custom">
<t t-call="report.html_container">
<t t-foreach="doc_ids" t-as="doc_id">
<t t-raw="translate_doc(doc_id, doc_model, 'partner_id.lang', 'sale_account_report.sale_account_report1')"/>
</t>
</t>
</template>
</data>
</openerp>
如果我使用原始文件，一切正常，但如果我将样式放在文件中的某个地方，如
<div style="font:18px 'Jameel Noori Nastaleeq', 'Nafees Web Naskh' !important;">
报告仅适用于一个报价，如果我选择多个报价，则会出现以下错误。如果我删除此样式并更新模块，一切正常。 请帮帮我。
Traceback (most recent call last): File "/opt/odoo/odoo/addons/report/controllers/main.py", line 121, in report_download
response = self.report_routes(reportname, docids=docids, converter='pdf') File "/opt/odoo/odoo/openerp/http.py", line 388, in response_wrap
response = f(*args, **kw) File "/opt/odoo/odoo/addons/report/controllers/main.py", line 65, in report_routes
pdf = report_obj.get_pdf(cr, uid, docids, reportname, data=options_data, context=context) File "/opt/odoo/odoo/openerp/api.py", line 237, in wrapper
return old_api(self, *args, **kwargs) File "/opt/odoo/odoo/addons/report/models/report.py", line 269, in get_pdf
paperformat, specific_paperformat_args, save_in_attachment File "/opt/odoo/odoo/openerp/api.py", line 237, in wrapper
return old_api(self, *args, **kwargs) File "/opt/odoo/odoo/addons/report/models/report.py", line 480, in
_run_wkhtmltopdf
entire_report_path = self._merge_pdf(pdfdocuments) File "/opt/odoo/odoo/addons/report/models/report.py", line 569, in
_merge_pdf
writer.write(merged_file) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 264, in write
self._sweepIndirectReferences(externalReferenceMap, self._root) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 339, in
_sweepIndirectReferences
self._sweepIndirectReferences(externMap, realdata) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 315, in
_sweepIndirectReferences
value = self._sweepIndirectReferences(externMap, value) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 339, in
_sweepIndirectReferences
self._sweepIndirectReferences(externMap, realdata) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 315, in
_sweepIndirectReferences
value = self._sweepIndirectReferences(externMap, value) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 324, in
_sweepIndirectReferences
value = self._sweepIndirectReferences(externMap, data[i]) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 339, in
_sweepIndirectReferences
self._sweepIndirectReferences(externMap, realdata) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 315, in
_sweepIndirectReferences
value = self._sweepIndirectReferences(externMap, value) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 354, in
_sweepIndirectReferences
newobj = self._sweepIndirectReferences(externMap, newobj) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 315, in
_sweepIndirectReferences
value = self._sweepIndirectReferences(externMap, value) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 315, in
_sweepIndirectReferences
value = self._sweepIndirectReferences(externMap, value) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 345, in
_sweepIndirectReferences
newobj = data.pdf.getObject(data) File "/usr/lib/pymodules/python2.7/pyPdf/pdf.py", line 649, in getObject
retval = readObject(self.stream, self) File "/usr/lib/pymodules/python2.7/pyPdf/generic.py", line 67, in readObject
return DictionaryObject.readFromStream(stream, pdf) File "/usr/lib/pymodules/python2.7/pyPdf/generic.py", line 519, in readFromStream
key = readObject(stream, pdf) File "/usr/lib/pymodules/python2.7/pyPdf/generic.py", line 87, in readObject
return NumberObject.readFromStream(stream) File "/usr/lib/pymodules/python2.7/pyPdf/generic.py", line 227, in readFromStream
return NumberObject(name) ValueError: invalid literal for int() with base 10: ''