Capture orthogonal lines/polygons do not works

Capture orthogonal lines/polygons function works incorrect. In polygonal layer it draws lines and in line layer it draws points (vertexes). When you trying to complete object creation the error appears.

Traceback (most recent call last):
File "C:\Users\aborodul/.qgis2/python/plugins\cadtools\tools\orthogonaldigitizer.py", line 89, in canvasPressEvent
self.createFeature()
File "C:\Users\aborodul/.qgis2/python/plugins\cadtools\tools\orthogonaldigitizer.py", line 126, in createFeature
layerEPSG = layer.srs().epsg()
AttributeError: 'QgsVectorLayer' object has no attribute 'srs'

Версия Python:
2.7.4 (default, Apr 6 2013, 19:54:46) [MSC v.1500 32 bit (Intel)]

Версия:
2.0.1-Dufour Dufour, exported