java - My XSD does not validate the XML despite proper namespace declarations -

the xsd <schema> tag:

<xs:schema xmlns:xs="http://www.w3.org/2001/xmlschema"     xmlns="http://www.cmu.edu/ns/blank"     targetnamespace="http://www.cmu.edu/ns/blank"     elementformdefault="qualified">  

the root of xml, <people> tag.

<people     xmlns="http://www.cmu.edu/ns/blank"     xmlns:xsi="http://www.w3c.org/2001/xmlschema-instance"     xsi:schemalocation="http://www.cmu.edu/ns/blank student.xsd">    

how ever en error that:

cvc-elt.1.a: cannot find declaration of element 'people'   

i know has namespaces can not figure out what.

please help

xml

<?xml version="1.0" encoding="utf-8" ?> <!-- <!doctype people system "validator.dtd"> -->       <people         xmlns="http://www.cmu.edu/ns/blank"         xmlns:xsi="http://www.w3c.org/2001/xmlschema-instance"         xsi:schemalocation="http://www.cmu.edu/ns/blank student.xsd">           <student>             <name>john</name>             <course>computer technology</course>             <semester>6</semester>             <scheme>e</scheme>         </student>          <student>             <name>foo</name>             <course>industrial electronics</course>             <semester>6</semester>             <scheme>e</scheme>         </student>     </people>   

xsd

<?xml version="1.0"?>  <xs:schema xmlns:xs="http://www.w3.org/2001/xmlschema"         xmlns="http://www.cmu.edu/ns/blank"         targetnamespace="http://www.cmu.edu/ns/blank"         elementformdefault="qualified">     <xs:element name="people">         <xs:complextype>             <xs:sequence>                 <xs:element name="student" maxoccurs="unbounded">                     <xs:complextype>                         <xs:sequence>                             <xs:element name="name" type="xs:string" />                             <xs:element name="course" type="xs:string" />                             <xs:element name="semester">                                 <xs:simpletype>                                     <xs:restriction base="xs:string">                                         <xs:enumeration value="1" />                                         <xs:enumeration value="2" />                                         <xs:enumeration value="3" />                                         <xs:enumeration value="4" />                                         <xs:enumeration value="5" />                                         <xs:enumeration value="6" />                                     </xs:restriction>                                 </xs:simpletype>                             </xs:element>                             <xs:element name="scheme">                                 <xs:simpletype>                                     <xs:restriction base="xs:string">                                         <xs:pattern value = "e|c" />                                     </xs:restriction>                                 </xs:simpletype>                             </xs:element>                         </xs:sequence>                     </xs:complextype>                 </xs:element>             </xs:sequence>         </xs:complextype>     </xs:element> </xs:schema> 

the thing that's not working schema location attribute's namespace. xml schema instance namespace is:

http://www.w3.org/2001/xmlschema-instance

instead of:

http://www.w3c.org/2001/xmlschema-instance (you put c in w3c)

for given xml, error is

the 'http://www.w3c.org/2001/xmlschema-instance:schemalocation' attribute not declared.