From f2f02abad15f85f88a24f2aca4b6c90dc3b213fc Mon Sep 17 00:00:00 2001
From: Marek Grochowski <marekgrochowski@web.de>
Date: Thu, 22 Oct 2020 18:56:54 +0200
Subject: [PATCH] Check for an empty dir variable added

If the preferences.sessionSaveDirectory variable isn't set, then there is on every open and close action of LogExpert an error message thrown that a dir path cannot be empty. Therefore, it should be checked whether the variable is empty.
---
 src/LogExpert/Classes/Persister/Persister.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/LogExpert/Classes/Persister/Persister.cs b/src/LogExpert/Classes/Persister/Persister.cs
index de61a6da..42dd2fee 100644
--- a/src/LogExpert/Classes/Persister/Persister.cs
+++ b/src/LogExpert/Classes/Persister/Persister.cs
@@ -165,7 +165,7 @@ private static string BuildPersisterFileName(string logFileName, Preferences pre
                     file = dir + Path.DirectorySeparatorChar + BuildSessionFileNameFromPath(logFileName);
                     break;
             }
-            if (!Directory.Exists(dir))
+            if (!string.IsNullOrWhiteSpace(dir) && !Directory.Exists(dir))
             {
                 try
                 {