basic XSD importing and xsd.exe? - visual-studio-2012

Question

I have a main xsd built against another one containing shared types (they are in the same directory).
That's the header of the main one :
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
xmlns:tns="XMLSchema_Module.xsd"
xmlns:cs="XML_Common"
targetNamespace="XMLSchema_Module.xsd"
elementFormDefault="qualified">
<xsd:import schemaLocation="XML_Common.xsd" namespace="XML_Common"/>
That's the header of the shared types one :
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
targetNamespace="XML_Common"
elementFormDefault="qualified">
That's the shared type enumeration I want to use in an attribute of the main schema :
<xsd:simpleType name="TypesType">
<xsd:restriction base ="xsd:token">
<xsd:enumeration value="int"/>
And here is the reference in the main one :
<xsd:attribute name="Type" type="cs:TypesType"/>
I am using xsd.exe to generate the serialization classes (integrated in the build process as a pre-build event). These xsd were built using VisualStudio.
<Exec Command=""C:\Program Files (x86)\Microsoft SDKs\Windows\v7.0A\Bin\xsd.exe" XSchemas\XMLSchema_Module.xsd /c /o:SerializationClasses /n:ScenarioManager" />
I am translating the actual message I obtain :
The type XML_Common:TypesType is not declared or is not a simple type.
It seems to be an import problem but I do not know how to solve it.

Answer 1

My bad, it seems that xsd.exe does not resolve schema imports.
From this article :
Now that the type has been defined in another file, the xsd.exe will
generate this error if you attempt to create the create the Request
XML: C:\Solution\Project>xsd.exe Request.xsd /c Schema validation
warning: Type 'http://www.Example.com/Types:Meeting' is not declared.
Warning: Schema could not be validated. Class generation may fail or
may produce incorrect results. Error: Error generating classes for
schema 'C:\Solution\Projects\Request'.
The datatype 'http://www.Example.com/Types:Meeting' is missing. If you would like more help, please type "xsd /?". This is due to the
fact that the xsd.exe does not use the schemaLocation hint to find the
imported schema. You’ve got to include it as a parameter. in your
xsd.exe call: C:\Solution\Project>xsd.exe Types.xsd Request.xsd /c

Answer 2

It should be emphasized that despite the pessimistic opening of LB40's answer, its last sentence yields the solution: in your xsd.exe call you have to include the referenced xsd as a parameter before the referencing xsd:
C:\Solution\Project>xsd.exe Types.xsd Request.xsd /c
This will generate a single cs source file containing the classes for both the schemas.