小编Bob*_*els的帖子

我正在尝试重新进入我的 conda 环境，但是当我输入conda activate (evironment name)或source activate (environment name)两者都返回错误“找不到 conda 环境”时，我遇到了问题。这很奇怪，因为当我输入时conda info --envs，我得到了这个：

# conda environments:
#
base                  *  /Users/(my name)/anaconda3
                         /anaconda3/envs/(environment name)

我正在尝试访问我正在编写的新应用程序的照片库。我有一个actionSheet，可让用户在相机和照片库之间进行选择。打开相机时，它会询问用户许可，但是打开照片库时，它不会。尽管如此，它仍然将用户带到他们的照片库。我在info.plist中专门引用了它，但是仍然没有区别。有什么帮助吗？我的代码：

@IBAction func allowAccessToPhotos(_ sender: Any) {

    let imagePickerController = UIImagePickerController()
    imagePickerController.delegate = self

    let actionSheet = UIAlertController(title: "Photo Source", message: "Choose a Source", preferredStyle: .actionSheet)

    actionSheet.addAction(UIAlertAction(title: "Photo Library", style: .default, handler: { (action:UIAlertAction) in imagePickerController.sourceType = .photoLibrary
        self.present(imagePickerController, animated: true, completion: nil)

    }))

    actionSheet.addAction(UIAlertAction(title: "Camera", style: .default, handler: { (action:UIAlertAction) in imagePickerController.sourceType = .camera
        self.present(imagePickerController, animated: true, completion: nil)

    }))

    actionSheet.addAction(UIAlertAction(title: "Cancel", style: .cancel, handler: nil))

    self.present(actionSheet, animated: true, completion: nil)
}