Fix argument null exception when updating plugin directories for erroneous plugins

Flow.Launcher.Core/Plugin/PluginManager.cs

@@ -36,7 +36,7 @@
         private static IPublicAPI API => api ??= Ioc.Default.GetRequiredService<IPublicAPI>();
 
         private static PluginsSettings Settings;
         private static List<PluginMetadata> _metadatas;
         private static readonly List<string> _modifiedPlugins = new();
 
         /// <summary>
@@ -111,7 +111,7 @@
             await Task.WhenAll(AllPlugins.Select(plugin => plugin.Plugin switch
             {
                 IReloadable p => Task.Run(p.ReloadData),
                 IAsyncReloadable p => p.ReloadDataAsync(),
                 _ => Task.CompletedTask,
             }).ToArray());
         }
@@ -173,10 +173,10 @@
         /// <param name="settings"></param>
         public static void LoadPlugins(PluginsSettings settings)
         {
             _metadatas = PluginConfig.Parse(Directories);
             Settings = settings;
             Settings.UpdatePluginSettings(_metadatas);
             AllPlugins = PluginsLoader.Plugins(_metadatas, Settings);
             // Since dotnet plugins need to get assembly name first, we should update plugin directory after loading plugins
             UpdatePluginDirectory(_metadatas);
         }
@@ -187,11 +187,19 @@
             {
                 if (AllowedLanguage.IsDotNet(metadata.Language))
                 {
+                    if (string.IsNullOrEmpty(metadata.AssemblyName))
+                    {
+                        continue; // Skip if AssemblyName is not set, which can happen for errornous plugins
+                    }
                     metadata.PluginSettingsDirectoryPath = Path.Combine(DataLocation.PluginSettingsDirectory, metadata.AssemblyName);
                     metadata.PluginCacheDirectoryPath = Path.Combine(DataLocation.PluginCacheDirectory, metadata.AssemblyName);
                 }
                 else
                 {
+                    if (string.IsNullOrEmpty(metadata.Name))
+                    {
+                        continue; // Skip if Name is not set, which can happen for errornous plugins
+                    }
                     metadata.PluginSettingsDirectoryPath = Path.Combine(DataLocation.PluginSettingsDirectory, metadata.Name);
                     metadata.PluginCacheDirectoryPath = Path.Combine(DataLocation.PluginCacheDirectory, metadata.Name);
                 }