jira插件安装后，在插件管理页面呈现灰色是什么情况呀？

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jira插件安装后，在插件管理页面呈现灰色是什么情况呀？并且插件无法加载，应该如何解决呢？从哪方面入手检查呀？拜托各位解答一下呀，谢谢了

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不要沉不要沉啊，麻烦哪位大神回复一下呀，报错 Unable to start the plugin container for plugin 'com.sangforpyxis.greenhopper.jira'org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userPropertyServiceImpl': Injection of autowired dependencies failed; nested exception is org.springframework.beans.factory.BeanCreationException: Could not autowire field: private com.atlassian.greenhopper.user.UserIssueTypeManagerBridge com.sangfor.greenhopper.service.properties.UserPropertyServiceImpl.userIssueTypeManagerBridge; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'userIssueTypeManagerBridgeFactory': FactoryBean threw exception on object creation;