UBUNTU：sudo apt-get update错误

Question

我需要帮助，当我运行 sudo apt-get update 这就是结果

can't create /var/cache/apt-show-versions/files: No such file or directory at /usr/bin/apt-show-versions line 196.
W: GPG error: http://ppa.launchpad.net trusty Release: The following  signatures couldn't be verified because the public key is not available:  NO_PUBKEY 32B18A1260D8DA0B
E: Problem executing scripts APT::Update::Post-Invoke-Success 'test -x /usr/bin/apt-show-versions || exit 0 ; apt-show-versions -i'
E: Sub-process returned an error code

我该如何解决这个问题。

Answer 1

您可能遇到了一些单独的问题但是对于GPG错误，请尝试关注this example。一旦你有了回复，我会尝试与你进一步合作。