diff --git a/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py b/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py
index 22480581072..11721c97d18 100644
--- a/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py
+++ b/python/plugins/processing/algs/qgis/ServiceAreaFromLayer.py
@@ -209,7 +209,7 @@ class ServiceAreaFromLayer(QgisAlgorithm):
                                                multiplier * 1000.0 / 3600.0)
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(context.project().crs(),
+        builder = QgsGraphBuilder(network.sourceCrs(),
                                   True,
                                   tolerance)
 
diff --git a/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py b/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py
index b2473b06ebe..a9926696a1f 100644
--- a/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py
+++ b/python/plugins/processing/algs/qgis/ServiceAreaFromPoint.py
@@ -200,7 +200,7 @@ class ServiceAreaFromPoint(QgisAlgorithm):
                                                multiplier * 1000.0 / 3600.0)
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(context.project().crs(),
+        builder = QgsGraphBuilder(network.sourceCrs(),
                                   True,
                                   tolerance)
         feedback.pushInfo(self.tr('Building graph...'))
diff --git a/python/plugins/processing/algs/qgis/ShortestPathLayerToPoint.py b/python/plugins/processing/algs/qgis/ShortestPathLayerToPoint.py
index 62745deb66e..839732c12c0 100644
--- a/python/plugins/processing/algs/qgis/ShortestPathLayerToPoint.py
+++ b/python/plugins/processing/algs/qgis/ShortestPathLayerToPoint.py
@@ -207,7 +207,7 @@ class ShortestPathLayerToPoint(QgisAlgorithm):
             multiplier = 3600
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(context.project().crs(),
+        builder = QgsGraphBuilder(network.sourceCrs(),
                                   True,
                                   tolerance)
 
@@ -237,7 +237,7 @@ class ShortestPathLayerToPoint(QgisAlgorithm):
 
         nPoints = len(snappedPoints)
         total = 100.0 / nPoints if nPoints else 1
-        for i in range(1, count + 1):
+        for i in range(1, nPoints + 1):
             if feedback.isCanceled():
                 break
 
diff --git a/python/plugins/processing/algs/qgis/ShortestPathPointToLayer.py b/python/plugins/processing/algs/qgis/ShortestPathPointToLayer.py
index b9d193ee094..434d51c7826 100644
--- a/python/plugins/processing/algs/qgis/ShortestPathPointToLayer.py
+++ b/python/plugins/processing/algs/qgis/ShortestPathPointToLayer.py
@@ -36,6 +36,7 @@ from qgis.core import (QgsWkbTypes,
                        QgsFeature,
                        QgsFeatureSink,
                        QgsGeometry,
+                       QgsFeatureRequest,
                        QgsFields,
                        QgsField,
                        QgsMessageLog,
@@ -206,7 +207,7 @@ class ShortestPathPointToLayer(QgisAlgorithm):
             multiplier = 3600
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(context.project().crs(),
+        builder = QgsGraphBuilder(network.sourceCrs(),
                                   True,
                                   tolerance)
 
@@ -237,7 +238,7 @@ class ShortestPathPointToLayer(QgisAlgorithm):
 
         nPoints = len(snappedPoints)
         total = 100.0 / nPoints if nPoints else 1
-        for i in range(1, count + 1):
+        for i in range(1, nPoints + 1):
             if feedback.isCanceled():
                 break
 
diff --git a/python/plugins/processing/algs/qgis/ShortestPathPointToPoint.py b/python/plugins/processing/algs/qgis/ShortestPathPointToPoint.py
index a942808d13d..16345a177d9 100644
--- a/python/plugins/processing/algs/qgis/ShortestPathPointToPoint.py
+++ b/python/plugins/processing/algs/qgis/ShortestPathPointToPoint.py
@@ -206,7 +206,7 @@ class ShortestPathPointToPoint(QgisAlgorithm):
             multiplier = 3600
 
         director.addStrategy(strategy)
-        builder = QgsGraphBuilder(context.project().crs(),
+        builder = QgsGraphBuilder(network.sourceCrs(),
                                   True,
                                   tolerance)
         feedback.pushInfo(self.tr('Building graph...'))