Many warnings from meta, extra, bordersurface, opticalsurface:
ColladaDOM Warning: The DOM was unable to create an element named meta at line 129650. Probably a schema violation.
Strip the extra elements:
xsltproc $ENV_HOME/geant4/geometry/collada/swift/strip-extra-meta.xsl /tmp/g4_00.dae > /tmp/g4_00_stripped.dae