修改异常信息文本

git-svn-id: http://code.alibabatech.com/svn/dubbo/trunk@1717 1a56cb94-b969-4eaa-88fa-be21384802f2

dubbo-rpc/dubbo-rpc-default/src/main/java/com/alibaba/dubbo/rpc/protocol/dubbo/DubboInvoker.java

@@ -109,7 +109,7 @@ public class DubboInvoker<T> extends AbstractInvoker<T> {
         } catch (TimeoutException e) {
             throw new RpcException(RpcException.TIMEOUT_EXCEPTION, "Invoke remote method timeout. method: " + invocation.getMethodName() + ", provider: " + getUrl() + ", cause: " + e.getMessage(), e);
         } catch (RemotingException e) {
-            throw new RpcException(RpcException.NETWORK_EXCEPTION, "Can not connect to prvoider. method: " + invocation.getMethodName() + ", provider: " + getUrl() + ", cause: " + e.getMessage(), e);
+            throw new RpcException(RpcException.NETWORK_EXCEPTION, "Failed to invoke remote method: " + invocation.getMethodName() + ", provider: " + getUrl() + ", cause: " + e.getMessage(), e);
         }
     }