修复 the following signatures couldn’t be verified because the public key is not available 错误

Ubuntu
  1. 1. 修复 public key is not available
    1. 1.1. 错误提示：
    2. 1.2. 解决办法：

修复 public key is not available

the following signatures couldn’t be verified because the public key is not available

错误提示：

例如：

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Err:6 https://dl.yarnpkg.com/debian stable InRelease

The following signatures couldn't be verified because the public key is not available: NO_PUBKEY 23E7166788B63E1E

解决办法：

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sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 23E7166788B63E1E

PUBKEY 要一致，例如上文中的：23E7166788B63E1E

Ubuntu Linux
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