Error validating iati-activities-schema.xsd with xsd tool .net

Hello everyone
im getting an error validating iati-activities-schema.xsd
file with xsd tool .net framework.
i would like create a class and then serialize data, read from db into
xml (iati valid)

this is error

Schema validation warning: Global element ‘iati-identifier’ already declared. Line 220, position 4.
Schema validation warning: Global element ‘document-link’ already declared. Line 2749, position 4.
Schema validation warning: ComplexType element ‘currencyType’ already declared. Line 2838, position 4.
Schema validation warning: Global attribute ‘currency’ already declared. Line 2853, position 4.

Warning: Schema could not be validated. Class generation may fail or may produce incorrect results.

thanks in advance

Dear developer,
Which version of IATI are you using? I am using xmllint (both under W10 and CentOS) and that works without any problems. Make sure you have all XSD files downloaded:

Core Schema¶

The current suite IATI XML schemas consists of the following components:
iati-organisations-schema.xsd - XML schema for describing an organisation involved in any stage development cooperation (funding, implementing etc.).
iati-activities-schema.xsd - XML Schema for describing the details of individual development cooperation activities/projects.

Supplementary Schema

In addition to the Organisation and Activity. core terms are described in the following:
iati-common.xsd - A supplementary schema with common IATI markup. Must be in the same directory as the Organisation and Activity schema.
xml.xsd - A supplementary schema that must be in the same directory as the Organisation and Activity schema.

Metadata Schema

The Registry Record provides a common format for the reporting of metadata to the IATI Registry.

Please note: Usage of this schema is not mandatory.
iati-registry-record-schema.xsd - An application-specific extension schema for importing documents into the IATI registry

Some tools have problems with the fact that the XSD is split over multiple files.

BTW: would you please be so kind to use your real name?

Regards
Herman

Thanks to answer me, the version is 2.02 and this is files list:

  1. iati-activities-schema.xsd
  2. iati-common.xsd
  3. xml.xsd

Tool used: xsd.exe .net Microsoft
can you suggest me usefull tool to split over multiple files

Regards
Francesco

Hi Francesco,
I have downloaded all 5 XSD files in one directory. XMLLINT under Linux works fine.

Installing XMLLINT under W10 is also possible, but is a bit tricky.

Regards
Herman