What's that mean??

Question

Hello,
I'm trying to start a process from bpm workspace but getting this error. Does anyone knows what's that mean and how to resolve it??
<bpelFault><faultType>0</faultType><remoteFault xmlns="http://schemas.oracle.com/bpel/extension"><part name="summary"><summary>oracle.fabric.common.FabricInvocationException: Schema validation failed for message part payload. Please ensure at the message sender level that the data sent is schema compliant. </summary></part><part name="detail"><detail>Invalid text '' in element: 'date'</detail></part><part name="code"><code>null</code></part></remoteFault></bpelFault>

Answer 1

actually i'm following this tutorial
http://www.oracle.com/webfolder/technetwork/tutorials/obe/fmw/obpm/11g/r1/firstProcess/firstprocess_obpm11g.htm#top
[it would be great if someone can send me the working example of the mention tutorial :)]
but when i try to test by visiting http://localhost:7001/bpm/workspace
and then clicking on my application I get the error "can't initiate the process and bla bla "
when I check the log and found this error :
<bpelFault><faultType>0</faultType><remoteFault xmlns="http://schemas.oracle.com/bpel/extension"><part name="summary"><summary>oracle.fabric.common.FabricInvocationException: Schema validation failed for message part payload. Please ensure at the message sender level that the data sent is schema compliant. </summary></part><part name="detail"><detail>Invalid text '' in element: 'date'</detail></part><part name="code"><code>null</code></part></remoteFault></bpelFault>
===================
by the way this is the payload and there is no message generated because process is not initiated :(
<?xml version = '1.0' encoding = 'UTF-8'?>
<schema targetNamespace="http://xmlns.oracle.com/bpel/workflow/task" xmlns:tns="http://xmlns.oracle.com/bpel/workflow/task" attributeFormDefault="unqualified" elementFormDefault="qualified" xmlns="http://www.w3.org/2001/XMLSchema" xmlns:ns0="http://xmlns.oracle.com/bpm/bpmobject/Hello/Hello">
<import namespace="http://xmlns.oracle.com/bpm/bpmobject/Hello/Hello" schemaLocation="../businessCatalog/Hello/Hello.xsd"/>
<complexType name="Humantask2PayloadType">
<sequence>
<element ref="ns0:Hello"/>
</sequence>
</complexType>
</schema>