我使用CKAN作为我的开放数据门户网站，并尝试按照https://github.com/ckan/ckanext-viewhelpers上的说明安装ckanext-viewhelpers扩展程序。
/usr/lib/ckan/default/src/ckanext-viewhelpers-master$ sudo python setup.py installChecking .pth file support in /usr/local/lib/python2.7/dist-packages/
/usr/bin/python -E -c pass
TEST PASSED: /usr/local/lib/python2.7/dist-packages/ appears to support .pth files
running bdist_egg
running egg_info
writing ckanext_viewhelpers.egg-info/PKG-INFO
writing namespace_packages to ckanext_viewhelpers.egg-info/namespace_packages.txt
writing top-level names to ckanext_viewhelpers.egg-info/top_level.txt
writing dependency_links to ckanext_viewhelpers.egg-info/dependency_links.txt
writing entry points to ckanext_viewhelpers.egg-info/entry_points.txt
reading manifest file 'ckanext_viewhelpers.egg-info/SOURCES.txt'
reading manifest template 'MANIFEST.in'
writing manifest file 'ckanext_viewhelpers.egg-info/SOURCES.txt'
installing library code to build/bdist.linux-x86_64/egg
running install_lib
running build_py
creating build/bdist.linux-x86_64/egg
creating build/bdist.linux-x86_64/egg/ckanext
copying build/lib.linux-x86_64-2.7/ckanext/__init__.py -> build/bdist.linux-x86_64/egg/ckanext
creating build/bdist.linux-x86_64/egg/ckanext/viewhelpers
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/plugin.py -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/__init__.py -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers
creating build/bdist.linux-x86_64/egg/ckanext/viewhelpers/tests
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/tests/__init__.py -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/tests
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/tests/test_view.py -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/tests
creating build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public
creating build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public/vendor
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/public/vendor/queryStringToJSON.js -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public/vendor
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/public/resource.config -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/public/filters_form.css -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/public/filters.js -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public
copying build/lib.linux-x86_64-2.7/ckanext/viewhelpers/public/filters_form.js -> build/bdist.linux-x86_64/egg/ckanext/viewhelpers/public
byte-compiling build/bdist.linux-x86_64/egg/ckanext/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/ckanext/viewhelpers/plugin.py to plugin.pyc
byte-compiling build/bdist.linux-x86_64/egg/ckanext/viewhelpers/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/ckanext/viewhelpers/tests/__init__.py to __init__.pyc
byte-compiling build/bdist.linux-x86_64/egg/ckanext/viewhelpers/tests/test_view.py to test_view.pyc
creating build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/PKG-INFO -> build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/SOURCES.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/dependency_links.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/entry_points.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/namespace_packages.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/not-zip-safe -> build/bdist.linux-x86_64/egg/EGG-INFO
copying ckanext_viewhelpers.egg-info/top_level.txt -> build/bdist.linux-x86_64/egg/EGG-INFO
creating 'dist/ckanext_viewhelpers-0.1-py2.7.egg' and adding 'build/bdist.linux-x86_64/egg' to it
removing 'build/bdist.linux-x86_64/egg' (and everything under it)
Processing ckanext_viewhelpers-0.1-py2.7.egg
removing '/usr/local/lib/python2.7/dist-packages/ckanext_viewhelpers-0.1-py2.7.egg' (and everything under it)
creating /usr/local/lib/python2.7/dist-packages/ckanext_viewhelpers-0.1-py2.7.egg
Extracting ckanext_viewhelpers-0.1-py2.7.egg to /usr/local/lib/python2.7/dist-packages
ckanext-viewhelpers 0.1 is already the active version in easy-install.pth
Installed /usr/local/lib/python2.7/dist-packages/ckanext_viewhelpers-0.1-py2.7.egg
Processing dependencies for ckanext-viewhelpers==0.1
Finished processing dependencies for ckanext-viewhelpers==0.1
但是我遇到了这个错误，我在CKAN配置文件中添加了viewhelpers后无法解决。
paster serve /etc/ckan/default/development.ini
Traceback (most recent call last):
File "/usr/lib/ckan/default/bin/paster", line 9, in <module>
load_entry_point('PasteScript==1.7.5', 'console_scripts', 'paster')()
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 104, in run
invoke(command, command_name, options, args[1:])
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 143, in invoke
exit_code = runner.run(args)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/command.py", line 238, in run
result = self.command()
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/serve.py", line 284, in command
relative_to=base, global_conf=vars)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/script/serve.py", line 321, in loadapp
**kw)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 247, in loadapp
return loadobj(APP, uri, name=name, **kw)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 272, in loadobj
return context.create()
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 710, in create
return self.object_type.invoke(self)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/loadwsgi.py", line 146, in invoke
return fix_call(context.object, context.global_conf, **context.local_conf)
File "/usr/lib/ckan/default/local/lib/python2.7/site-packages/paste/deploy/util.py", line 56, in fix_call
val = callable(*args, **kw)
File "/usr/lib/ckan/default/src/ckan/ckan/config/middleware.py", line 57, in make_app
load_environment(conf, app_conf)
File "/usr/lib/ckan/default/src/ckan/ckan/config/environment.py", line 232, in load_environment
p.load_all(config)
File "/usr/lib/ckan/default/src/ckan/ckan/plugins/core.py", line 134, in load_all
load(*plugins)
File "/usr/lib/ckan/default/src/ckan/ckan/plugins/core.py", line 149, in load
service = _get_service(plugin)
File "/usr/lib/ckan/default/src/ckan/ckan/plugins/core.py", line 256, in _get_service
raise PluginNotFoundException(plugin_name)
ckan.plugins.core.PluginNotFoundException: viewhelpers
我在安装其他扩展时也遇到了相同的PluginNotFoundException，即使我在virtualenv上安装了扩展并将其添加到配置文件中，根据文档。感谢是否有人可以帮助解决我的问题。感谢。
答案 0 :(得分：0)
我认为：
安装插件时没有激活virtualenv，或者
当您使用paster serve运行CKAN时，您没有激活virtualenv
如果为1，请激活您的virtualenv并重新安装插件。
如果是2，请激活你的virtualenv。