missing org.xml.sax.EntityResolver during Cocoon build

Hello, I have this error when I try to build a Cocoon 2.1-dev snapshot (january 29, 2003) within an Eclipse project: This compilation unit indirectly references the missing type org.xml.sax.EntityResolver (typically some required class file is referencing a type outside the classpath). I

missing org.xml.sax.EntityResolver during Cocoon build

Hello, I have this error when I try to build a Cocoon 2.1-dev snapshot (january 29, 2003) within an Eclipse project: This compilation unit indirectly references the missing type org.xml.sax.EntityResolver (typically some required class file is referencing a type outside the classpath). I