从您显示的内容看起来，您有一个元素 Name common 命名空间，但不是类型，而您尝试在此使用类型：

 < xsd：element name =Nametype =common：NameminOccurs =1maxOccurs =1> 
< xsd：annotation> 
< xsd：documentation> Name< / xsd：documentation> 
< / xsd：annotation> 
< / xsd：element> 
 

所以创建一个类型 common：Name 或者使用< xsd：element ref =common：Name... /> 。

I am defining the schema but on validating it in eclipse it gives following error.

src-resolve: Cannot resolve the name 'common:Name' to a(n) 'type definition' component.

My schema looks like following:

<?xml version="1.0" encoding="UTF-8"?>
<xsd:schema targetNamespace="http://www.mycompany.com/myproject/service/v1"              xmlns:xsd="http://www.w3.org/2001/XMLSchema"
        xmlns:tns="http://www.mycompany.com/myproject/service/v1"            
        xmlns:product="http://www.mycompany.com/otherproject/service/products/v1"
        xmlns:common="http://www.mycompany.com/myproject/service/common/v1" elementFormDefault="qualified">

<xsd:import namespace="http://www.mycompany.com/otherproject/service/products/v1" schemaLocation="products_v1.xsd" />
<xsd:import namespace="http://www.mycompany.com/myproject/service/common/v1" schemaLocation="common_v1.xsd" />          

<xsd:element name="GetProductRequest" type="tns:GetProductRequest">
    <xsd:annotation>
        <xsd:documentation>Get Product Request</xsd:documentation>
    </xsd:annotation>
</xsd:element>  

<xsd:complexType name="GetProuctRequest">
    <xsd:annotation>
        <xsd:documentation>Get Product Request</xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>

        <xsd:element name="ID" type="common:ID" minOccurs="1" maxOccurs="1">
            <xsd:annotation>
                <xsd:documentation>ID</xsd:documentation>
            </xsd:annotation>
        </xsd:element>


        <xsd:element name="Name" type="common:Name" minOccurs="1" maxOccurs="1">
            <xsd:annotation>
                <xsd:documentation>Name</xsd:documentation>
            </xsd:annotation>
        </xsd:element>  

    </xsd:sequence>
</xsd:complexType>

.....

and common_v1.xsd looks like following

<xsd:schema targetNamespace="http://www.mycompany.com/myproject/service/common/v1" xmlns:xsd="http://www.w3.org/2001/XMLSchema"
        xmlns:tns="http://www.mycompany.com/myproject/service/common/v1" 
        elementFormDefault="qualified">


<xsd:complexType name="ID">
    <xsd:annotation>
        <xsd:documentation>ID</xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
        <xsd:element name="X" type="xsd:string" minOccurs="1" maxOccurs="1">
            <xsd:annotation>
                <xsd:documentation>X</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
        <xsd:element name="Y" type="xsd:string" minOccurs="1" maxOccurs="1">
            <xsd:annotation>
                <xsd:documentation>Y</xsd:documentation>
            </xsd:annotation>
        </xsd:element>
    </xsd:sequence>
</xsd:complexType>  

<xsd:element name="Name" type="xsd:string">
    <xsd:annotation>
        <xsd:documentation>Name</xsd:documentation>
    </xsd:annotation>
</xsd:element>
......

Problem is my schema is able to resolve some of the elements from common_v1.xsd and some not. In above code common:ID does not give any error but common:Name gives error.

I am not able to understand why some of the elements are not resolved.

From what you show it looks like you have an element Name in the common namespace, but not the type and you're trying to use the type here:

    <xsd:element name="Name" type="common:Name" minOccurs="1" maxOccurs="1">
        <xsd:annotation>
            <xsd:documentation>Name</xsd:documentation>
        </xsd:annotation>
    </xsd:element>

So either create a type common:Name or use <xsd:element ref="common:Name" .../> instead.