--- a/src/eric7/QtHelpInterface/HelpDocsInstaller.py	Wed Nov 22 19:42:41 2023 +0100
+++ b/src/eric7/QtHelpInterface/HelpDocsInstaller.py	Thu Nov 23 16:23:37 2023 +0100
@@ -192,7 +192,7 @@
         """
         versionKey = "qt_version_{0}@@{1}".format(version, name)
         info = engine.customValue(versionKey, "")
-        lst = info.split("|")
+        lst = info.split("|") if info else []
 
         dt = None
         if len(lst) and lst[0]: