Hi, after upgraded zope.configuration to 3.8.0, I've the same error on 2 ZCML files: ZopeXMLConfigurationError: File "/home/sdouche/src/sact/main/sact.nevrax/eggs/sact.nevrax.conf/src/sact/nevrax/conf/service/minimal_populate.zcml", line 8.2-13.2 KeyError: 0 The file : <configure xmlns="http://namespaces.zope.org/zope" xmlns:browser="http://namespaces.zope.org/browser" xmlns:i18n="http://namespaces.zope.org/i18n" i18n_domain="nevrax"> <include package="z3c.unconfigure" file="meta.zcml" /> <unconfigure> <subscriber for="sact.nevrax.conf.zone.interfaces.IPopulatedZone" handler=".service_mgr.populate" /> </unconfigure> <subscriber for="sact.nevrax.conf.zone.interfaces.IPopulatedZone" handler="sact.nevrax.conf.tests.layers.populate_minimal" /> </configure>t ZopeXMLConfigurationError: File "/home/sdouche/src/sact/main/sact.nevrax/src/sact/nevrax/testbrowser/no-service.zcml", line 3.2-7.2 KeyError: 0 The file : <configure xmlns="http://namespaces.zope.org/zope"> <unconfigure> <subscriber for="sact.nevrax.conf.zone.interfaces.IPopulatedZone" handler="sact.nevrax.conf.service.service_mgr.populate" /> </unconfigure> </configure> Do you know why? Any hint? Thanks. -- Sebastien Douche <sdouche@gmail.com> Twitter: @sdouche / G+: +sdouche