<http://forum.aquaveo.com/topic/1144-modflow-model-checker-err/#comment-6623>
<http://schema.org/text>
"As I'm trying to convert the materials to horizons, its showing some error. Also, how did you build solids from boreholes?\n "
<https://forum.aquaveo.com/topic/1144-modflow-model-checker-err/?tab=comments>