I'm currently writing my Thesis about QGIS where it is my task to create a map of Austrias motorways (roads with the type A and B3**). I am working with a shapefile where all roads are so I selected the ones I need by looking for attributes. Now my problem is that I cannot save them as a new layer. As it comes to saving it the following message shows up:
"Export in Vektordatei schlug fehl. Fehler: Layererzeugung schlug fehl (OGR-Fehler: Failed to open Shapefile `Autobahn_Test1.shp'.)"
This pretty much says that the export to a vector-format has failed.
Error: Generating a layer has failed (OGR-error).
What else can I try to make this work?