I've been trying to use the Union tool on a layer of building polygons, with a layer of output area polygons. The building layer has the largest number of features I've used so far, 106716, if that's relevant.
Yesterday, QGIS was just freezing up trying to do the Union, and I ended up cancelling it with a view to giving it loads of time today.
However today I've been getting an error that reads:
No output created. File creation error: creation of layer failed (OGR error:Failed to open Shapefile `G:/New folder\Test.shp'.)
Can anyone help me resolve this new error?