I am using QGIS 1.7.4., downloaded April 2012, but receive an import error loading the class QgsVectorFieldSymbolLayer. As i understand this class has been added in the Python bindings on 2011-11-15. Does anybody know whether this class has already been included and if so, what else can be wrong?
No, while executing a Python script. First line:
from qgis.core import (QgsSymbolLayerV2Registry, QgsDataSourceURI, QgsVectorLayer, QgsVectorFieldSymbolLayer, QgsSymbolLayerV2AbstractMetadata, QgsCoordinateReferenceSystem, QgsMapLayer, QgsField, QgsComposition, QgsComposerLegend, QgsComposerLabel, QgsRectangle, QgsFeature, QgsMapLayerRegistry, QgsGraduatedSymbolRendererV2, QgsSymbolV2, QgsRendererRangeV2, QgsMarkerSymbolLayerV2)
All classes are imported okay, except QgsVectorFieldSymbolLayer.