Maciej Wisniowski wrote: Take a look at pathes in your traceback:

/usr/local/www/zope/278/lib/python /usr/local/zope/278/lib/python

/usr/local/zope/instance1/Products

Why there are two different(!) lib/python/ folders? I see the problem! And I know what caused it. So I rebuilt Zope from source and tried again. Unfortunately, I got the same_darn_error, just without the "www" dir: Traceback (most recent call last): File "/usr/local/zope/278/lib/python/OFS/Application.py", line 673, in import_product product=__import__(pname, global_dict, global_dict, silly) File "/usr/local/zope/instance1/Products/ATContentTypes/__init__.py", line 54, in ? import Products.ATContentTypes.content File "/usr/local/zope/instance1/Products/ATContentTypes/content/__init__.py", line 34, in ? import Products.ATContentTypes.content.topic File "/usr/local/zope/instance1/Products/ATContentTypes/content/topic.py", line 33, in ? from Products.CMFPlone.CatalogTool import CatalogTool File "/usr/local/zope/instance1/Products/CMFPlone/CatalogTool.py", line 27, in ? from Products.CMFPlone.utils import base_hasattr ImportError: cannot import name base_hasattr Traceback (most recent call last): File "/usr/local/zope/278/lib/python/Zope/Startup/run.py", line 50, in ? run() File "/usr/local/zope/278/lib/python/Zope/Startup/run.py", line 19, in run start_zope(opts.configroot) File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 52, in start_zope starter.startZope() File "/usr/local/zope/278/lib/python/Zope/Startup/__init__.py", line 231, in startZope Zope.startup() File "/usr/local/zope/278/lib/python/Zope/__init__.py", line 47, in startup _startup() File "/usr/local/zope/278/lib/python/Zope/App/startup.py", line 45, in startup OFS.Application.import_products() File "/usr/local/zope/278/lib/python/OFS/Application.py", line 650, in import_products import_product(product_dir, product_name, raise_exc=debug_mode) File "/usr/local/zope/278/lib/python/OFS/Application.py", line 673, in import_product product=__import__(pname, global_dict, global_dict, silly) File "/usr/local/zope/instance1/Products/ATContentTypes/__init__.py", line 54, in ? import Products.ATContentTypes.content File "/usr/local/zope/instance1/Products/ATContentTypes/content/__init__.py", line 34, in ? import Products.ATContentTypes.content.topic File "/usr/local/zope/instance1/Products/ATContentTypes/content/topic.py", line 33, in ? from Products.CMFPlone.CatalogTool import CatalogTool File "/usr/local/zope/instance1/Products/CMFPlone/CatalogTool.py", line 27, in ? from Products.CMFPlone.utils import base_hasattr ImportError: cannot import name base_hasattr TIA, Tony

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