Output error message in case of file errors.
Output error message in case of file errors.

svn path=/trunk/KDE/kdeedu/marble/; revision=1034419

rku/marble,oberluz/marble,adraghici/marble,utkuaydin/marble,utkuaydin/marble,tzapzoor/marble,AndreiDuma/marble,tucnak/marble,AndreiDuma/marble,tucnak/marble,adraghici/marble,oberluz/marble,Earthwings/marble,David-Gil/marble-dev,quannt24/marble,adraghici/marble,adraghici/marble,AndreiDuma/marble,oberluz/marble,tucnak/marble,utkuaydin/marble,tucnak/marble,quannt24/marble,probonopd/marble,tzapzoor/marble,rku/marble,AndreiDuma/marble,rku/marble,rku/marble,quannt24/marble,oberluz/marble,Earthwings/marble,Earthwings/marble,Earthwings/marble,rku/marble,probonopd/marble,tzapzoor/marble,tzapzoor/marble,quannt24/marble,Earthwings/marble,rku/marble,Earthwings/marble,utkuaydin/marble,tzapzoor/marble,quannt24/marble,David-Gil/marble-dev,David-Gil/marble-dev,probonopd/marble,tzapzoor/marble,AndreiDuma/marble,tucnak/marble,probonopd/marble,tzapzoor/marble,probonopd/marble,AndreiDuma/marble,David-Gil/marble-dev,oberluz/marble,probonopd/marble,David-Gil/marble-dev,probonopd/marble,utkuaydin/marble,David-Gil/marble-dev,oberluz/marble,adraghici/marble,quannt24/marble,tzapzoor/marble,tucnak/marble,tucnak/marble,utkuaydin/marble,quannt24/marble,adraghici/marble