[Erp5-users] ply module missing on LiveCD?

[Gál László]

Hi,

I downloaded erp5-1.0rc11 LiveCD yestsrday and followed the instructions
including updating Products with svn_update.sh, but when zope starts,  
it gives
me the following error:
2008-05-20T15:03:41 ERROR(200) Zope Could not import  
Products.CMFActivity
Traceback (most recent call last):
   File "/usr/lib/zope/./build/build-base/python-2.4/build-lib/OFS/ 
Application.py", line 673, in import_prod
uct
   File "/var/lib/zope/Products/CMFActivity/__init__.py", line 34, in ?
     from Products.ERP5Type.Utils import initializeProduct,  
updateGlobals
   File "/var/lib/zope/Products/ERP5Type/__init__.py", line 39, in ?
     from Products.ERP5Type.Utils import initializeProduct,  
updateGlobals
   File "/var/lib/zope/Products/ERP5Type/Utils.py", line 1369, in ?
     from Base import Base as BaseClass
   File "/var/lib/zope/Products/ERP5Type/Base.py", line 62, in ?
     from ZopePatch import ERP5PropertyManager
   File "/var/lib/zope/Products/ERP5Type/ZopePatch.py", line 26, in ?
     from Products.ERP5Type.patches import DCWorkflow
   File "/var/lib/zope/Products/ERP5Type/patches/DCWorkflow.py", line  
208, in ?
     from Products.ERP5Type.patches.WorkflowTool import  
SECURITY_PARAMETER_ID, WORKLIST_METADATA_KEY
   File "/var/lib/zope/Products/ERP5Type/patches/WorkflowTool.py",  
line 28, in ?
     from Products.ZSQLCatalog.SQLCatalog import Query, ComplexQuery,  
NegatedQuery
   File "/var/lib/zope/Products/ZSQLCatalog/__init__.py", line 16, in ?
     import ZSQLCatalog, SQLCatalog
   File "/var/lib/zope/Products/ZSQLCatalog/ZSQLCatalog.py", line 28,  
in ?
     from SQLCatalog import Catalog, CatalogError
   File "/var/lib/zope/Products/ZSQLCatalog/SQLCatalog.py", line  
2388, in ?
     from Query.SimpleQuery import NegatedQuery, SimpleQuery
   File "/var/lib/zope/Products/ZSQLCatalog/Query/SimpleQuery.py",  
line 289, in ?
     from Products.ZSQLCatalog.SearchKey.DefaultKey import DefaultKey
   File "/var/lib/zope/Products/ZSQLCatalog/SearchKey/DefaultKey.py",  
line 30, in ?
     from SearchKey import SearchKey
   File "/var/lib/zope/Products/ZSQLCatalog/SearchKey/SearchKey.py",  
line 34, in ?
     import ply.yacc as yacc
ImportError: No module named ply.yacc

That's why /erp5 says a Broken Product message.
What should I do?
Thanks,
Laszlo