BPEL has problems parsing XSD with attributes

Hi,
When I create a BPEL process with below output XSD, everything works fine.
+<xsd:element name="WorkflowOutputData">+
+<xsd:annotation>+
+<xsd:documentation>+
This element defines an XML output element
which is used by all the BPEL workflow services,
to send output to the calling program
+</xsd:documentation>+
+</xsd:annotation>+
+<xsd:complexType>+
+<xsd:sequence>+
+<xsd:element name="Status" type="xsd:string" minOccurs="1" maxOccurs="1" />+
+<xsd:element name="Errors" minOccurs="0" maxOccurs="1" >+
+<xsd:complexType>+
+<xsd:sequence minOccurs="0" maxOccurs="unbounded">+
+<xsd:element name="Error" type="LogMessage"/>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+<xsd:element name="Warnings" minOccurs="0" maxOccurs="1">+
+<xsd:complexType>+
+<xsd:sequence minOccurs="0" maxOccurs="unbounded">+
+<xsd:element name="Warning" type="LogMessage"/>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+<xsd:complexType name="LogMessage">+
+<xsd:sequence>+
+<xsd:element name="Code" type="xsd:string" minOccurs="1" maxOccurs="1" />+
+<xsd:element name="Description" type="xsd:string" minOccurs="1" maxOccurs="1" />+
+<xsd:element name="FlexField1" type="xsd:string" />+
+<xsd:element name="FlexField2" type="xsd:string" />+
+<xsd:element name="FlexField3" type="xsd:string" />+
+</xsd:sequence>+
+</xsd:complexType>+
As soon as I add below approvers element as shown below to the BPEL process output XSD, I'm not able to test the BPEL process in BPEL console.
"Initiating a test instance" screen in BPEL console doesn't show any html or xml form to enter data.
+<xsd:element name="WorkflowOutputData">+
+<xsd:annotation>+
+<xsd:documentation>+
This element defines an XML output element
which is used by all the BPEL workflow services,
to send output to the calling program
+</xsd:documentation>+
+</xsd:annotation>+
+<xsd:complexType>+
+<xsd:sequence>+
+<xsd:element name="Status" type="xsd:string" minOccurs="1" maxOccurs="1" />+
+<xsd:element name="Errors" minOccurs="0" maxOccurs="1" >+
+<xsd:complexType>+
+<xsd:sequence minOccurs="0" maxOccurs="unbounded">+
+<xsd:element name="Error" type="LogMessage"/>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+<xsd:element name="Warnings" minOccurs="0" maxOccurs="1">+
+<xsd:complexType>+
+<xsd:sequence minOccurs="0" maxOccurs="unbounded">+
+<xsd:element name="Warning" type="LogMessage"/>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+<xsd:element name="Approvers" minOccurs="0" maxOccurs="1">+
+<xsd:complexType>+
+<xsd:sequence maxOccurs="unbounded">+
+<xsd:element name="Approver" type="Actor" />+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+</xsd:sequence>+
+</xsd:complexType>+
+</xsd:element>+
+<xsd:complexType name="LogMessage">+
+<xsd:sequence>+
+<xsd:element name="Code" type="xsd:string" minOccurs="1" maxOccurs="1" />+
+<xsd:element name="Description" type="xsd:string" minOccurs="1" maxOccurs="1" />+
+<xsd:element name="FlexField1" type="xsd:string" />+
+<xsd:element name="FlexField2" type="xsd:string" />+
+<xsd:element name="FlexField3" type="xsd:string" />+
+</xsd:sequence>+
+</xsd:complexType>+
+<xsd:complexType name="Actor">+
+<xsd:attribute name="Name"/>+
+<xsd:attribute name="Email"/>+
+<xsd:attribute name="Designation"/>+
+<xsd:attribute name="ApprovalSequence"/>+
+<xsd:attribute name="FlexField1"/>+
+<xsd:attribute name="FlexField2"/>+
+<xsd:attribute name="FlexField3"/>+
+<xsd:attribute name="FlexField4"/>+
+<xsd:attribute name="FlexField5"/>+
+</xsd:complexType>+
1) approvers element is added to output xsd and not to input xsd.
2) I see a javascript error "Object expected" iin "Initiating a test instance" BPEL screen.
3) The new approver element contains only attributes.
Could someone help me understand the issue with the XSD. Your help is highly appreciated.
Thanks & Regards
Leena

Main issue was I was using an element
<xsd:element name="DataElements" minOccurs="0" maxOccurs="1">
<xsd:annotation>
<xsd:documentation>
Most of the worflow services return status, errors and warnings
and doesn't return any DataElements.
In current implementation, only one of the workflow services returns approver list.
To take care of future scenarios
where a data element might be required to return some data,
an extra 'DataElement' field is added to the XSD.
</xsd:documentation>
</xsd:annotation>
<xsd:complexType>
<xsd:sequence>
<xsd:element name="DataElement" minOccurs="0" maxOccurs="unbounded">
<xsd:complexType>
<xsd:attribute name="Name"/>
<xsd:attribute name="Value"/>
<xsd:attribute name="FlexField1"/>
<xsd:attribute name="FlexField2"/>
<xsd:attribute name="FlexField3"/>
<xsd:attribute name="FlexField4"/>
<xsd:attribute name="FlexField5"/>
</xsd:complexType>
</xsd:element>
     </xsd:sequence>
          </xsd:complexType>
          </xsd:element>
which I had to change to
<xsd:element name="DataElements" minOccurs="0" maxOccurs="1">
<xsd:complexType>
<xsd:sequence minOccurs="0" maxOccurs="unbounded">
<xsd:element name="DataElement" type="DataElementType" />
</xsd:sequence>
</xsd:complexType>
     </xsd:element>
<xsd:complexType name="DataElementType">
<xsd:attribute name="Name" type="xsd:string"/>
<xsd:attribute name="Value" type="xsd:string"/>
<xsd:attribute name="FlexField1" type="xsd:string"/>
<xsd:attribute name="FlexField2" type="xsd:string"/>
<xsd:attribute name="FlexField3" type="xsd:string"/>
<xsd:attribute name="FlexField4" type="xsd:string"/>
<xsd:attribute name="FlexField5" type="xsd:string"/>
</xsd:complexType>

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