来自apt-get-update:
The following signatures were invalid: BADSIG 26C95CF201182252 Neo Technology Admins <admins@neotechnology.com> The following signatures were invalid: KEYEXPIRED 1572135620
Fetched 328 kB in 0s (339 kB/s)
Reading package lists... Done
W: An error occurred during the signature verification. The repository is not updated and the previous index files will be used. GPG error: https://debian.neo4j.org/repo stable/ Release: The following signatures were invalid: BADSIG 26C95CF201182252 Neo Technology Admins <admins@neotechnology.com> The following signatures were invalid: KEYEXPIRED 1572135620
W: Failed to fetch https://debian.neo4j.org/repo/stable/Release.gpg The following signatures were invalid: BADSIG 26C95CF201182252 Neo Technology Admins <admins@neotechnology.com> The following signatures were invalid: KEYEXPIRED 1572135620
W: Some index files failed to download. They have been ignored, or old ones used instead.
apt密钥列表：
# apt-key list 01182252
pub 4096R/01182252 2014-10-28 [expired: 2019-10-27]
uid Neo Technology Admins <admins@neotechnology.com>
我使用https://debian.neo4j.org/neotechnology.gpg.key获取密钥
密钥现在已更新。你可以重做：
wget -O - https://debian.neo4j.com/neotechnology.gpg.key | sudo apt-key add -
或者从密钥服务器更新apt密钥列表：
sudo apt-key adv --recv-keys --keyserver keys.gnupg.net D37F5F19 01182252