--- python.project/src/org/netbeans/modules/python/project/ui/actions/BuildCommand.java	
+++ python.project/src/org/netbeans/modules/python/project/ui/actions/BuildCommand.java	
@@ -137,7 +137,7 @@ 
 
         //System.out.println("Working directory" + path);
 
-        pyexec.setWorkingDirectory(path.toString());
+        pyexec.setWorkingDirectory(path.getPath());
         pyexec.setCommand(platform.getInterpreterCommand());
 
         //Set python script