Handle IO errors in LoadManifest

Emby.Server.Implementations/Plugins/PluginManager.cs

@@ -512,15 +512,20 @@ namespace Emby.Server.Implementations.Plugins
             var metafile = Path.Combine(dir, "meta.json");
             if (File.Exists(metafile))
             {
+                // Only path where this stays null is when File.ReadAllBytes throws an IOException
+                byte[] data = null!;
                 try
                 {
-                    var data = File.ReadAllBytes(metafile);
+                    data = File.ReadAllBytes(metafile);
                     manifest = JsonSerializer.Deserialize<PluginManifest>(data, _jsonOptions);
                 }
-                catch (JsonException ex)
+                catch (IOException ex)
                 {
-                    _logger.LogError(ex, "Error deserializing {Path}.", dir);
+                    _logger.LogError(ex, "Error reading file {Path}.", dir);
                 }
+                catch (JsonException ex)
+                {
+                    _logger.LogError(ex, "Error deserializing {Json}.", Encoding.UTF8.GetString(data!));
                 }
 
                 if (manifest != null)
@@ -537,6 +542,7 @@ namespace Emby.Server.Implementations.Plugins
 
                     return new LocalPlugin(dir, _appVersion >= targetAbi, manifest);
                 }
+            }
 
             // No metafile, so lets see if the folder is versioned.
             // TODO: Phase this support out in future versions.