In a lot of project we often see warnings and errors concerning the markup of your document template. With the warnings you often have a pointer as to which part of your document template it is concerning however it remains guessing. What way do you use to debug your document template, or do you just ignore the warnings all together. Also how do you handle errors generated by the document template. i.e. we are currently seeing a lot of these errors, but the document template seems to be generated just fine anyway. Invalid property value encountered in height="1 px": org.apache.fop.fo.expr.PropertyException: null:13:9404: No conversion defined 1 px; property:'height' (See position 13:9553)