当我跑步时
sudo apt-get update
我收到此错误：
E: Type 'License' is not known on line 1 in source list /etc/apt/sources.list.d/yarn.list
E: The list of sources could not be read.
我尝试进入该位置并删除第 1 行。然后我重新运行该命令。
结果
下一行显示相同的错误，并且仍然如此！我必须删除所有行吗？我该怎么办？
编辑
当我运行此命令时
cat /etc/apt/sources.list.d/yarn.list
输出
deb http://archive.ubuntu.com/ubuntu precise main universe restricted multiverse
deb-src http://archive.ubuntu.com/ubuntu precise universe main multiverse restricted
deb http://security.ubuntu.com/ubuntu/ precise-security universe main multiverse restricted
deb http://archive.ubuntu.com/ubuntu precise-updates universe main multiverse restricted
deb http://archive.ubuntu.com/ubuntu precise-backports universe main multiverse restricted
# deb http://archive.canonical.com/ubuntu precise partner
# deb-src http://archive.canonical.com/ubuntu precise partner
# deb http://extras.ubuntu.com/ubuntu precise main
# deb-src http://extras.ubuntu.com/ubuntu precise main
License GPLv3+: GNU GPL version 3 or later
<https://gnu.org/licenses/gpl.html> This is free software: you are free
to change and redistribute it. There is NO WARRANTY, to the extent
permitted by law.
Home: /tmp/apt-key-gpghome.UZ7VSJpZcy
Supported algorithms:
Pubkey: RSA, ELG, DSA, ECDH, ECDSA, EDDSA
Cipher: IDEA, 3DES, CAST5, BLOWFISH, AES, AES192, AES256, TWOFISH,
CAMELLIA128, CAMELLIA192, CAMELLIA256
Hash: SHA1, RIPEMD160, SHA256, SHA384, SHA512, SHA224
Compression: Uncompressed, ZIP, ZLIB, BZIP2
Syntax: gpg [options] [files]
Sign, check, encrypt or decrypt
Default operation depends on the input data
Commands:
-s, --sign make a signature
--clear-sign make a clear text signature
-b, --detach-sign make a detached signature
-e, --encrypt encrypt data
-c, --symmetric encryption only with symmetric cipher
-d, --decrypt decrypt data (default)
--verify verify a signature
-k, --list-keys list keys
--list-signatures list keys and signatures
--check-signatures list and check key signatures
--fingerprint list keys and fingerprints
-K, --list-secret-keys list secret keys
--generate-key generate a new key pair
--quick-generate-key quickly generate a new key pair
--quick-add-uid quickly add a new user-id
--quick-revoke-uid quickly revoke a user-id
--quick-set-expire quickly set a new expiration date
--full-generate-key full featured key pair generation
--generate-revocation generate a revocation certificate
--delete-keys remove keys from the public keyring
--delete-secret-keys remove keys from the secret keyring
--quick-sign-key quickly sign a key
--quick-lsign-key quickly sign a key locally
--sign-key sign a key
--lsign-key sign a key locally
--edit-key sign or edit a key
--change-passphrase change a passphrase
--export export keys
--send-keys export keys to a keyserver
--receive-keys import keys from a keyserver
--search-keys search for keys on a keyserver
--refresh-keys update all keys from a keyserver
--import import/merge keys
--card-status print the card status
--edit-card change data on a card
--change-pin change a card's PIN
--update-trustdb update the trust database
--print-md print message digests
--server run in server mode
--tofu-policy VALUE set the TOFU policy for a key
Options:
-a, --armor create ascii armored output
-r, --recipient USER-ID encrypt for USER-ID
-u, --local-user USER-ID use USER-ID to sign or decrypt
-z N set compress level to N (0 disables)
--textmode use canonical text mode
-o, --output FILE write output to FILE
-v, --verbose verbose
-n, --dry-run do not make any changes
-i, --interactive prompt before overwriting
--openpgp use strict OpenPGP behavior
(See the man page for a complete listing of all commands and options)
Examples:
-se -r Bob [file] sign and encrypt for user Bob
--clear-sign [file] make a clear text signature
--detach-sign [file] make a detached signature
--list-keys [names] show keys
--fingerprint [names] show fingerprints
Please report bugs to <https://bugs.gnupg.org>.
OK
答案1
美好的sudo rm /etc/apt/sources.list.d/yarn.list
比较你的/etc/apt/sources.list 和我的
deb http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse
# deb-src http://archive.ubuntu.com/ubuntu bionic main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse
# deb-src http://archive.ubuntu.com/ubuntu bionic-updates main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu bionic-security main restricted universe multiverse
# deb-src http://archive.ubuntu.com/ubuntu bionic-security main restricted universe multiverse
deb http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
# deb-src http://archive.ubuntu.com/ubuntu bionic-backports main restricted universe multiverse
deb http://archive.canonical.com/ubuntu bionic partner
# deb-src http://archive.canonical.com/ubuntu bionic partner
尝试sudo apt update。如果 apt 抱怨其他错误，请删除文件夹下的文件/etc/apt/sources.list.d/