From e4c717851b0a6349af6e130fdb0aa1eb409cdf79 Mon Sep 17 00:00:00 2001
From: Beta-User <>
Date: Mon, 22 Mar 2021 06:28:20 +0000
Subject: [PATCH] 59_Twilight: fix unitialized useExtWeather warning at startup

git-svn-id: https://svn.fhem.de/fhem/trunk@24051 2b470e98-0d58-463d-a4d8-8e2adae1ed80
---
 fhem/FHEM/59_Twilight.pm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fhem/FHEM/59_Twilight.pm b/fhem/FHEM/59_Twilight.pm
index a568b12d5..67854e3f0 100644
--- a/fhem/FHEM/59_Twilight.pm
+++ b/fhem/FHEM/59_Twilight.pm
@@ -402,7 +402,7 @@ sub Twilight_Attr {
 
     if ( $attrName eq 'useExtWeather' ) {
         if ($cmd eq 'set') {
-            return "External weather device already in use, most likely assigned by define" if $hash->{helper}{extWeather}{regexp} =~ m{$attrVal}xms;
+            return "External weather device already in use, most likely assigned by define" if defined $hash->{helper} && defined $hash->{helper}{extWeather}{regexp} && $hash->{helper}{extWeather}{regexp} =~ m{$attrVal}xms;
             return Twilight_init_ExtWeather_usage($hash, $attrVal); 
         } elsif ($cmd eq 'del') {
             notifyRegexpChanged( $hash, q{} );