Quote Originally Posted by Abedul View Post
as you know , MPC compiles only when there is no error at all.
This is not quite true. For example, the MPC will not react if some roads are not connected in reality or when these polylines don't have all the necessary routing attributes.


Quote Originally Posted by Abedul View Post
I checked previously all lines are well connected and after compilation some nodes appear as no cennected and the automatic routing does a long loop to connect.
It is not convincing, if you did this check in MP format using GPSMapEdit.
Try to check those connections in the road shapefile via ArcGIS or MapInfo at maximum zoom.


Quote Originally Posted by Abedul View Post
If the shape file contains errors... , do you know the way to detect and coorect them ?
It is best to use any professional GIS for this, or MicroGIS Editor at least.


P.S. I hope that you have taken into account my previous remarks concerning the config file for the mp2shp, see my [Only registered and activated users can see links. ] and further ...