diff --git a/TLPhotoPicker.podspec b/TLPhotoPicker.podspec
index 98200970..b8542c6f 100644
--- a/TLPhotoPicker.podspec
+++ b/TLPhotoPicker.podspec
@@ -8,7 +8,7 @@
 
 Pod::Spec.new do |s|
   s.name             = 'TLPhotoPicker'
-  s.version          = '1.6.7'
+  s.version          = '1.6.8'
   s.summary          = 'multiple phassets picker for iOS lib. like facebook'
 
 # This description is used to generate tags and improve search results.
diff --git a/TLPhotoPicker/Classes/TLPhotoCollectionViewCell.swift b/TLPhotoPicker/Classes/TLPhotoCollectionViewCell.swift
index 00e1cf84..21114322 100644
--- a/TLPhotoPicker/Classes/TLPhotoCollectionViewCell.swift
+++ b/TLPhotoPicker/Classes/TLPhotoCollectionViewCell.swift
@@ -67,10 +67,12 @@ open class TLPhotoCollectionViewCell: UICollectionViewCell {
             if self.configure.autoPlay == false { return }
             if self.player == nil {
                 self.playerView?.playerLayer.player = nil
-                NotificationCenter.default.removeObserver(observer)
+                if let oberver = self.observer {
+                    NotificationCenter.default.removeObserver(observer)
+                }
             }else {
                 self.playerView?.playerLayer.player = self.player
-                observer = NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: self.player?.currentItem, queue: nil, using: { [weak self] (_) in
+                self.observer = NotificationCenter.default.addObserver(forName: .AVPlayerItemDidPlayToEndTime, object: self.player?.currentItem, queue: nil, using: { [weak self] (_) in
                     DispatchQueue.main.async {
                         guard let `self` = self else { return }
                         self.player?.seek(to: kCMTimeZero)
diff --git a/TLPhotoPicker/Classes/TLPhotoLibrary.swift b/TLPhotoPicker/Classes/TLPhotoLibrary.swift
index f8b93fc6..5c1eb3a1 100644
--- a/TLPhotoPicker/Classes/TLPhotoLibrary.swift
+++ b/TLPhotoPicker/Classes/TLPhotoLibrary.swift
@@ -160,7 +160,6 @@ extension TLPhotoLibrary {
         let useCameraButton = configure.usedCameraButton
         let options = getOption(configure: configure)
         
-        @discardableResult
         func getAlbum(subType: PHAssetCollectionSubtype, result: inout [TLAssetsCollection]) {
             let fetchCollection = PHAssetCollection.fetchAssetCollections(with: .album, subtype: subType, options: nil)
             var collections = [PHAssetCollection]()
diff --git a/TLPhotoPicker/Classes/TLPhotosPickerViewController.swift b/TLPhotoPicker/Classes/TLPhotosPickerViewController.swift
index f0e689c7..ae28080b 100644
--- a/TLPhotoPicker/Classes/TLPhotosPickerViewController.swift
+++ b/TLPhotoPicker/Classes/TLPhotosPickerViewController.swift
@@ -769,7 +769,7 @@ extension TLPhotosPickerViewController: UICollectionViewDelegate,UICollectionVie
                 print("not supported by the simulator.")
                 return
             }else {
-                if let nibName = self.configure.cameraCellNibSet?.nibName {
+                if self.configure.cameraCellNibSet?.nibName != nil {
                     cell.selectedCell()
                 }else {
                     self.logDelegate?.selectedCameraCell(picker: self)