I'm trying to validate a really simple xml using xsd, but for some reason I get this error. I'll really appreciate if someone can explain me why. XML File <
periscope
zend-framework-mvc
nlopt
slam
documentai
code-snippets
nrepl
observability
recaptcha
easywsdl
act-as-taggable-on
e-token
substrate
palantir-foundry-security
phpdotenv
publish-subscribe
spring-security-ldap
fitness
cross-domain-policy
datalistitem
document-root
google-website-optimizer
external-display
low-level-io
azure-custom-domain
qtandroidextras
custom-application
xaml-binding
powerpoint-addins
object-detection-api