Plone 5.0 and Carousel 2.2.1 - carousel

Question

This question regards Plone 5.0 and add-on Carousel 2.2.1. The version of Carousel, taken from /usr/local/Plone/buildout-cache/eggs/Products.Carousel-2.2.1-py2.7.egg/EGG-INFO, is:
Metadata-Version: 1.1
Name: Products.Carousel
Version: 2.2.1
Summary: Carousel allows you to add user-configurable rotating banners to any section of a Plone site.
Home-page: <https://github.com/collective/Products.Carousel>
Author: Groundwire
The following shows the results of attempting to start Plone in the foreground. Plone started to a degree then crashed due to a problem with Carousel. The beginning and end of the output are shown; lots of diagnostics in the middle of the output were elided.
root#wandboard # /bin/pwd; /bin/date; /usr/bin/sudo -u plone_daemon /usr/local/Plone/zinstance/bin/instance fg
/usr/local/Plone-5.0/zinstance/var
Sun Jan 10 18:35:19 EST 2016
2016-01-10 18:35:28 INFO ZServer HTTP server started at Sun Jan 10 18:35:28 2016
Hostname: 0.0.0.0
Port: 8080
2016-01-10 18:35:38 WARNING ZODB.blob (13658) Blob dir /usr/local/Plone-5.0/zinstance/var/blobstorage/ has insecure mode setting
2016-01-10 18:35:57 INFO Plone OpenID system packages not installed, OpenID support not available
Traceback (most recent call last):
File "/usr/local/Plone-5.0/zinstance/parts/instance/bin/interpreter", line 288, in <module>
exec(compile(`__file__f.read(), __file__, "exec")`)
File "/usr/local/Plone-5.0/buildout-cache/eggs/Zope2-2.13.23-py2.7.egg/Zope2/Startup/run.py", line 76, in <module>
run()
File "/usr/local/Plone-5.0/buildout-cache/eggs/Zope2-2.13.23-py2.7.egg/Zope2/Startup/run.py", line 22, in run
starter.prepare()
.
.
.
many more diagnostics elided
.
.
.
File "/usr/local/Plone-5.0/buildout-cache/eggs/zope.configuration-3.7.4-py2.7.egg/zope/configuration/fields.py", line 139, in fromUnicode
raise schema.ValidationError(v)
zope.configuration.xmlconfig.ZopeXMLConfigurationError: File "/usr/local/Plone-5.0/zinstance/parts/instance/etc/site.zcml", line 16.2-16.23
ZopeXMLConfigurationError: File "/usr/local/Plone-5.0/buildout-cache/eggs/Products.Carousel-2.2.1-py2.7.egg/Products/Carousel/configure.zcml", line 23.2-23.32
ZopeXMLConfigurationError: File "/usr/local/Plone-5.0/buildout-cache/eggs/Products.Carousel-2.2.1-py2.7.egg/Products/Carousel/browser/configure.zcml", line 24.2-31.6
ConfigurationError: ('Invalid value for', 'class', 'ImportError: Module plone.app.layout.viewlets.common has no global ContentActionsViewlet')
In /usr/local/Plone-5.0/buildout-cache/eggs/Products.Carousel-2.2.1-py2.7.egg/Products/Carousel/browser/configure.zcml lines 24 to 31 are:
<browser:viewlet
name="plone.contentactions"
for="Products.Carousel.interfaces.ICarouselFolder"
view="..interfaces.ICarouselSettingsView"
manager="plone.app.layout.viewlets.interfaces.IContentViews"
class="plone.app.layout.viewlets.common.ContentActionsViewlet"
permission="zope2.View"
/>
What is a ContentActionsViewlet? Can I fix this by somehow installing a global ContentActionsViewlet or is this something the Carousel add-on authors would best be able to fix? This same Carousel add-on works fine with Plone 4.3.2. Thanks.

Answer 1

The addon is simply not Plone 5 compatible.
The ContentActionsViewlet was merged into the ContentViewsViewlet See plone.app.layout 2.5.8
Unfortunately this will not be the only issue.
You need to contact the maintainer, probably they are willing to upgrade the package, or you may try it by yourself:
Plone 5 Uprade guide: http://docs.plone.org/develop/addons/upgrade_to_50.html
Good example for package, which supports Plone 4.3.x and Plone 5 --> https://github.com/plone/plone.app.mosaic