Using Schema in DOMCount

[Rackl, Robert G]

After having used xml on Windows, I am now trying to use xml in Linux
using xerces. I am new to xerces and fairly new to C++. Successfully
compiled the DOMCount sample program. But I am unsuccessful in trying to
have DOMCount validate the input xml file using the command

./DOMCount -v=always -s -f ~/practice/SamplePanelDat.xml

(tried various combinations of -n, -s, -f options - to no avail)

Many errors are reported as if the schema file did not exist (but it
does). The first few lines of the input file are thus:

<?xml version="1.0" encoding="UTF-8"?>
<PanelData xmlns="http://www.w3schools.com";
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
        xsi:noNamespaceSchemaLocation="~/practice/ADINB_PanelData.xsd">
        <Identification ID="12345" Case="Sample for demonstrating XML
format, successful aero data extraction, fictitious data"/>

The first few lines of the schema file ADINB_PanelData.xsd are thus:

<?xml version="1.0" encoding="UTF-8"?>
<!-- edited with XMLSpy v2008 rel. 2 sp1 (http://www.altova.com) by
WILLIAM ANDERSON (BOEING SHARED SERVICES GROUP) -->
<xs:schema xmlns="http://www.w3schools.com";
xmlns:xs="http://www.w3.org/2001/XMLSchema";
targetNamespace="http://www.w3schools.com";
elementFormDefault="qualified" attributeFormDefault="unqualified">
        <xs:element name="PanelData">
                <xs:complexType>
                        <xs:sequence>
                                <xs:element ref="Identification"/>

What's wrong, please?

  -_r4_\.
___`o-#^o`__