Description Carsten Hammer 2020-07-20 03:45:44 EDT

There are different problems:

1) tags with wrong case according to the used schema http://www.w3.org/2001/XMLSchema like appInfo instead of appinfo
eg. https://git.eclipse.org/r/c/platform/eclipse.platform.ui/+/166413/1/bundles/org.eclipse.ui/schema/actionSets.exsd

2) missing schema reference (and tags wrong) eg.
https://git.eclipse.org/r/c/platform/eclipse.platform.ui/+/166413/1/bundles/org.eclipse.ui/schema/acceleratorScopes.exsd

3) wrong usage of schema like
<attribute name="default" type="boolean" use="default" value="false">
instead of 
<attribute name="default" type="boolean" use="optional" default="false">
eg.
https://git.eclipse.org/r/c/platform/eclipse.platform.ui/+/166413/1/bundles/org.eclipse.ui/schema/editors.exsd#b165

4) wrong namespace like
<element ref="actionSetPartAssociation" minOccurs="0" maxOccurs="unbounded"/>
instead of
<element ref="n1:actionSetPartAssociation" minOccurs="0" maxOccurs="unbounded" xmlns:n1="org.eclipse.ui"/>
eg. 
https://git.eclipse.org/r/c/platform/eclipse.platform.ui/+/166413/1/bundles/org.eclipse.ui/schema/actionSetPartAssociations.exsd

Maybe more..