WSO2 APIpipe理器响应失败，APIMgtGoogleAnalyticsTrackingHandler错误

WSO2 API Manager作为分布式设置与docker一起部署。 以下错误logging在网关工作者控制台中，并且未收到响应。

[2017-04-18 08:08:54,879] WARN - AccessConfiguration Error loading properties from file: access-log.properties 2017-4-18 13.38.54[2017-04-18 08:08:54,926] INFO - TimeoutHandler This engine will expire all callbacks after GLOBAL_TIMEOUT: 120 seconds, irrespective of the timeout action, after the specified or optional timeout 2017-4-18 13.40.11[2017-04-18 08:10:11,978] INFO - DependencyTracker Local entry : gov:/apimgt/statistics/ga-config.xml was added to the Synapse configuration successfully 2017-4-18 13.40.11[2017-04-18 08:10:11,979] ERROR - APIMgtGoogleAnalyticsTrackingHandler Unable to load Google Analytics configuration using key: gov:/apimgt/statistics/ga-config.xml 2017-4-18 13.40.12[2017-04-18 08:10:11,999] INFO - LogMediator To: /tomcat/1.0/root, MessageID: urn:uuid:7c3a167a-a341-42d7-80ee-f9cbcdf748f6, Direction: request, MESSAGE = Executing default "fault" sequence, ERROR_CODE = 0, ERROR_MESSAGE = Unable to load Google Analytics configuration using key: gov:/apimgt/statistics/ga-config.xml, Envelope: <?xml version='1.0' encoding='utf-8'?><soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope"><soapenv:Body/></soapenv:Envelope>