fix: null ref is explore folder, without projects on the list (or filtered by search)

Author: unitycoder

Diff for: UnityLauncherPro/MainWindow.xaml.cs

@@ -657,7 +657,7 @@ Project GetSelectedProject()
         {
             return (Project)gridRecent.SelectedItem;
         }
-        
+
         UnityInstallation GetSelectedUnity()
         {
             return (UnityInstallation)dataGridUnitys.SelectedItem;
@@ -1019,7 +1019,7 @@ private void BtnLaunchProject_Click(object sender, RoutedEventArgs e)
         private void BtnExplore_Click(object sender, RoutedEventArgs e)
         {
             var proj = GetSelectedProject();
-            Tools.ExploreFolder(proj.Path);
+            Tools.ExploreFolder(proj?.Path);
             Tools.SetFocusToGrid(gridRecent);
         }
 

Diff for: UnityLauncherPro/Tools.cs

@@ -216,9 +216,10 @@ public static void AddProjectToHistory(string projectPath)
         // NOTE holding alt key (when using alt+o) brings up unity project selector
         public static Process LaunchProject(Project proj, DataGrid dataGridRef = null, bool useInitScript = false, bool upgrade = false)
         {
-            Console.WriteLine("Launching project " + proj.Title + " at " + proj.Path);
-
             if (proj == null) return null;
+
+            Console.WriteLine("Launching project " + proj?.Title + " at " + proj?.Path);
+
             if (Directory.Exists(proj.Path) == false) return null;
 
             // add this project to recent projects in preferences TODO only if enabled +40 projecs