错误消息具有误导性

这个问题实际上与符号链接无关。 通常，问题只是Docker找不到描述构建的Dockerfile。

典型原因如下:

Dockerfile has wrong name. It must be called Dockerfile. If it is called, for instance, dockerfile, .Dockerfile, Dockerfile.txt, or other, it will not be found. Dockerfile is not in context. If you say docker build contextdir, the Dockerfile must be at contextdir/Dockerfile. If you have it in, say, ./Dockerfile instead, it will not be found. Dockerfile does not exist at all. Does it sound silly? Well, I got the above error message from my GitLab CI after I had written a nice Dockerfile, but I had forgotten to check it in. Silly? Sure. Unlikely? No.

文件的名称应该是Dockerfile，而不是。Dockerfile。该文件不应该有任何扩展名。

该错误意味着docker构建使用了一个不正确输入的PATH | URL，或者在当前目录中无法找到Dockerfile。此外，确保从集成终端(例如IDE或文本编辑器中的bash)运行该命令时，您具有管理权限。 如果你可以用pwd从你的终端检查路径(在bash shell中或在windows上使用简单的cli时使用dir)，并复制你想要构建图像的确切路径，那就最好了。

docker编译C:\windows\your_amazing_directory

Docker build——help还将向您展示在格式错误或非法命令的情况下可用的选项。

错误消息具有误导性

这个问题实际上与符号链接无关。 通常，问题只是Docker找不到描述构建的Dockerfile。

典型原因如下:

Dockerfile has wrong name. It must be called Dockerfile. If it is called, for instance, dockerfile, .Dockerfile, Dockerfile.txt, or other, it will not be found. Dockerfile is not in context. If you say docker build contextdir, the Dockerfile must be at contextdir/Dockerfile. If you have it in, say, ./Dockerfile instead, it will not be found. Dockerfile does not exist at all. Does it sound silly? Well, I got the above error message from my GitLab CI after I had written a nice Dockerfile, but I had forgotten to check it in. Silly? Sure. Unlikely? No.

安装码头工人。IO代替docker帮助了我

i.e.

apt install docker.io

确保你的DOCKERfile在应用程序目录的根目录下，我把我的文件放在src中，这导致了这个错误，因为Docker没有找到DOCKERfile的路径