如何使用自制软件符号链接文件以及如何删除文件

Question

我安装了PIL，然后安装了libjpeg，我收到以下错误：

    jpeg8-d is already installed, it's just not linked
    Could not symlink file: /usr/local/Cellar/jpeg/8d/bin/wrjpgcom
    Target /usr/local/bin/wrjpgcom already exists. You may need to delete it.
    To force the link and delete this file, do:
    brew link --overwrite formula_name

Answer 1

问题和解决方案都是由您发布的错误消息完整描述的。你不明白它的哪一部分？

Could not symlink file: /usr/local/Cellar/jpeg/8d/bin/wrjpgcom
Target /usr/local/bin/wrjpgcom already exists.

这告诉你，出于某种原因，你已经从Homebrew以外的地方得到了/usr/local/bin/wrjpgcom，而Homebrew不想弄乱它，以防万一你有充分的理由

To force the link and delete this file, do:
brew link --overwrite formula_name

如果您不知道该文件来自何处，请不要关心，只是希望它被抨击，只需brew link --overwrite jpeg8-d。

您可能还想运行brew doctor，让它在您的设置中查找应修复的其他问题。