小编jer*_*rry的帖子

我有这个:

#[derive(FromPrimitive)]
pub enum MyEnum {
    Var1 = 1,
    Var2
}

还有一个错误:

error: cannot find derive macro `FromPrimitive` in this scope                                                                                                 
   |                                                                                                                                                          
38 | #[derive(FromPrimitive)]                                                                                                                                 
   |          ^^^^^^^^^^^^^   

为什么我这样做？我如何解决它？

我想为 git 使用其他 IdentityFile。我想动态使用它，而不是通过配置。我这样做：

  $ GIT_SSH_COMMAND='ssh -i /home/my_user/.ssh/id_ed25519' git pull origin master
  repository access denied.
  fatal: Could not read from remote repository.

  Please make sure you have the correct access rights
  and the repository exists.

pub 密钥“id_ed25519.pub”在我的 bitbucket 中。

这也失败了：

  $ git pull origin master
  repository access denied.
  fatal: Could not read from remote repository.

  Please make sure you have the correct access rights
  and the repository exists.

和：

$ git remote -v
origin  git@bitbucket.org:company123/repo456.git (fetch)
origin  git@bitbucket.org:company123/repo456.git (push)

将 …

例如，这行不通：

puts "hello"

"""

var1 = 123
var2 = "#{var3}"  # exception!

"""

这将在运行时抛出异常，即使代码应该作为注释被跳过。