--- a/TimeTracker/TimeTracker.py	Sat Mar 31 13:49:52 2018 +0200
+++ b/TimeTracker/TimeTracker.py	Sun Jul 15 19:26:44 2018 +0200
@@ -473,10 +473,16 @@
         """
         Private slot to handle the activation of the project browser.
         """
-        if self.__ui.layout == "Toolboxes":
+        try:
+            uiLayoutType = self.__ui.getLayoutType()
+        except AttributeError:
+            # backward compatibility for eric < 18.08
+            uiLayoutType = self.__ui.layoutType
+        
+        if uiLayoutType == "Toolboxes":
             self.__ui.hToolboxDock.show()
             self.__ui.hToolboxDock.setCurrentWidget(self.__widget)
-        elif self.__ui.layout == "Sidebars":
+        elif uiLayoutType == "Sidebars":
             self.__ui.bottomSidebar.show()
             self.__ui.bottomSidebar.setCurrentWidget(self.__widget)
         else: