我安装了最新的WS02 API Manager 1.6.0。我按照指示进行了普通安装，没什么特别的。当我创建API，发布它，订阅它，创建一个访问令牌，并尝试访问它时，我看到以下错误（我替换了访问密钥，但它正在显示）：
[2014-02-03 13:25:47,850] ERROR - APIAuthenticationHandler API authentication failure
org.wso2.carbon.apimgt.gateway.handlers.security.APISecurityException: Access failure for API: /weather, version: 1 with key: access_key
似乎API和访问密钥没有连接。还有什么我需要做的才能实现这一目标吗？我没有为密钥管理器使用单独的数据库，只是安装附带的任何内容，我假设是内存数据库。我在Chrome中使用Advanced Rest Client尝试过此操作。我猜测某些东西没有正确配置，但我没有在启动时看到任何错误。我只是看到一些警告：
[2014-02-03 13:25:01,262] WARN - DefaultSchemaGenerator We don't support method overloading. Ignoring [validateAudience Restriction]
以下是错误的完整堆栈跟踪：
[2014-02-03 13:25:47,850] ERROR - APIAuthenticationHandler API authentication failure
org.wso2.carbon.apimgt.gateway.handlers.security.APISecurityException: Access failure for API: /weather, version: 1 with key: access_key
at org.wso2.carbon.apimgt.gateway.handlers.security.oauth.OAuthAuthenticator.authenticate(OAuthAuthenticator.jav
a:139)
at org.wso2.carbon.apimgt.gateway.handlers.security.APIAuthenticationHandler.handleRequest(APIAuthenticationHand
ler.java:92)
at org.apache.synapse.rest.API.process(API.java:285)
at org.apache.synapse.rest.RESTRequestHandler.dispatchToAPI(RESTRequestHandler.java:76)
at org.apache.synapse.rest.RESTRequestHandler.process(RESTRequestHandler.java:63)
at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(Axis2SynapseEnvironment.java:220)
at org.apache.synapse.core.axis2.SynapseMessageReceiver.receive(SynapseMessageReceiver.java:83)
at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:180)
at org.apache.synapse.transport.passthru.ServerWorker.processNonEntityEnclosingRESTHandler(ServerWorker.java:336
)
at org.apache.synapse.transport.passthru.ServerWorker.run(ServerWorker.java:168)
at org.apache.axis2.transport.base.threads.NativeWorkerPool$1.run(NativeWorkerPool.java:172)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:895)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:918)
at java.lang.Thread.run(Thread.java:662)