安装出现错误 请问该怎么解决

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这是日志

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Get:1 mirrors.cloud.aliyuncs.com/ubuntu xenial InRelease [247 kB]
Get:2 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates InRelease [109 kB]
Get:3 mirrors.cloud.aliyuncs.com/ubuntu xenial-security InRelease [109 kB]
Get:4 mirrors.cloud.aliyuncs.com/ubuntu xenial/main Sources [868 kB]
Get:5 mirrors.cloud.aliyuncs.com/ubuntu xenial/universe Sources [7,728 kB]
Get:6 mirrors.cloud.aliyuncs.com/ubuntu xenial/main amd64 Packages [1,201 kB]
Get:7 mirrors.cloud.aliyuncs.com/ubuntu xenial/main i386 Packages [1,196 kB]
Get:8 mirrors.cloud.aliyuncs.com/ubuntu xenial/main Translation-en [568 kB]
Get:9 mirrors.cloud.aliyuncs.com/ubuntu xenial/universe amd64 Packages [7,532 kB]
Get:10 mirrors.cloud.aliyuncs.com/ubuntu xenial/universe i386 Packages [7,512 kB]
Get:11 mirrors.cloud.aliyuncs.com/ubuntu xenial/universe Translation-en [4,354 kB]
Get:12 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main Sources [534 kB]
Get:13 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/universe Sources [444 kB]
Get:14 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main amd64 Packages [1,982 kB]
Get:15 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main i386 Packages [1,496 kB]
Get:16 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main Translation-en [472 kB]
Get:17 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/universe amd64 Packages [1,216 kB]
Get:18 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/universe i386 Packages [1,083 kB]
Get:19 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/universe Translation-en [356 kB]
Get:20 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/main Sources [248 kB]
Get:21 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/universe Sources [211 kB]
Get:22 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/main amd64 Packages [1,581 kB]
Get:23 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/main i386 Packages [1,130 kB]
Get:24 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/main Translation-en [370 kB]
Get:25 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/universe amd64 Packages [785 kB]
Get:26 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/universe i386 Packages [665 kB]
Get:27 mirrors.cloud.aliyuncs.com/ubuntu xenial-security/universe Translation-en [225 kB]
Fetched 44.2 MB in 7s (5,822 kB/s)
Reading package lists…
Reading package lists…
Building dependency tree…
Reading state information…
The following additional packages will be installed:
python3-pycurl python3-software-properties unattended-upgrades
Suggested packages:
libcurl4-gnutls-dev python-pycurl-doc python3-pycurl-dbg bsd-mailx
needrestart
The following NEW packages will be installed:
python3-pycurl python3-software-properties software-properties-common
unattended-upgrades
0 upgraded, 4 newly installed, 0 to remove and 36 not upgraded.
Need to get 114 kB of archives.
After this operation, 901 kB of additional disk space will be used.
Get:1 mirrors.cloud.aliyuncs.com/ubuntu xenial/main amd64 python3-pycurl amd64 7.43.0-1ubuntu1 [42.3 kB]
Get:2 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main amd64 python3-software-properties all 0.96.20.10 [20.2 kB]
Get:3 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main amd64 software-properties-common all 0.96.20.10 [9,504 B]
Get:4 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates/main amd64 unattended-upgrades all 1.1ubuntu1.18.04.716.04.6 [42.1 kB]
Preconfiguring packages …
Fetched 114 kB in 0s (510 kB/s)
Selecting previously unselected package python3-pycurl.
(Reading database …
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(Reading database … 100809 files and directories currently installed.)
Preparing to unpack …/python3-pycurl_7.43.0-1ubuntu1_amd64.deb …
Unpacking python3-pycurl (7.43.0-1ubuntu1) …
Selecting previously unselected package python3-software-properties.
Preparing to unpack …/python3-software-properties_0.96.20.10_all.deb …
Unpacking python3-software-properties (0.96.20.10) …
Selecting previously unselected package software-properties-common.
Preparing to unpack …/software-properties-common_0.96.20.10_all.deb …
Unpacking software-properties-common (0.96.20.10) …
Selecting previously unselected package unattended-upgrades.
Preparing to unpack …/unattended-upgrades_1.1ubuntu1.18.04.716.04.6_all.deb …
Unpacking unattended-upgrades (1.1ubuntu1.18.04.716.04.6) …
Processing triggers for dbus (1.10.6-1ubuntu3.6) …
Processing triggers for man-db (2.7.5-1) …
Processing triggers for ureadahead (0.100.0-19.1) …
Processing triggers for systemd (229-4ubuntu21.29) …
Setting up python3-pycurl (7.43.0-1ubuntu1) …
Setting up python3-software-properties (0.96.20.10) …
Setting up software-properties-common (0.96.20.10) …
Setting up unattended-upgrades (1.1ubuntu1.18.04.716.04.6) …

Creating config file /etc/apt/apt.conf.d/50unattended-upgrades with new version
insserv: can not symlink(../init.d/aegis, ../rc2.d/S02aegis): File exists
insserv: can not symlink(../init.d/aegis, ../rc3.d/S02aegis): File exists
insserv: can not symlink(../init.d/aegis, ../rc4.d/S02aegis): File exists
insserv: can not symlink(../init.d/aegis, ../rc5.d/S02aegis): File exists
Synchronizing state of unattended-upgrades.service with SysV init with /lib/systemd/systemd-sysv-install…
Executing /lib/systemd/systemd-sysv-install enable unattended-upgrades
Processing triggers for dbus (1.10.6-1ubuntu3.6) …
Processing triggers for ureadahead (0.100.0-19.1) …
Processing triggers for systemd (229-4ubuntu21.29) …
gpg: keyring /tmp/tmp13ni1w13/secring.gpg' created gpg: keyring/tmp/tmp13ni1w13/pubring.gpg’ created
gpg: requesting key E5267A6C from hkp server keyserver.ubuntu.com
gpg: /tmp/tmp13ni1w13/trustdb.gpg: trustdb created
gpg: key E5267A6C: public key “Launchpad PPA for Ondřej Surý” imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
gpg: keyring /tmp/tmpvid940lw/secring.gpg' created gpg: keyring/tmp/tmpvid940lw/pubring.gpg’ created
gpg: requesting key C300EE8C from hkp server keyserver.ubuntu.com
gpg: /tmp/tmpvid940lw/trustdb.gpg: trustdb created
gpg: key C300EE8C: public key “Launchpad Stable” imported
gpg: no ultimately trusted keys found
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
OK
OK
OK
Hit:1 mirrors.cloud.aliyuncs.com/ubuntu xenial InRelease
Hit:2 mirrors.cloud.aliyuncs.com/ubuntu xenial-updates InRelease
Hit:3 mirrors.cloud.aliyuncs.com/ubuntu xenial-security InRelease
Ign:4 mirrors.tuna.tsinghua.edu.cn/nodes... xenial InRelease
Ign:5 mirrors.tuna.tsinghua.edu.cn/nodes... xenial Release
Ign:6 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Sources
Ign:7 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main amd64 Packages
Ign:8 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main i386 Packages
Ign:9 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main all Packages
Ign:10 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en_US
Ign:11 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en
Ign:6 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Sources
Ign:7 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main amd64 Packages
Ign:8 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main i386 Packages
Ign:9 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main all Packages
Ign:10 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en_US
Ign:11 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en
Ign:6 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Sources
Ign:7 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main amd64 Packages
Ign:8 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main i386 Packages
Ign:9 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main all Packages
Ign:10 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en_US
Ign:11 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en
Ign:6 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Sources
Ign:7 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main amd64 Packages
Ign:8 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main i386 Packages
Ign:9 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main all Packages
Ign:10 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en_US
Ign:11 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en
Ign:6 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Sources
Ign:7 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main amd64 Packages
Ign:8 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main i386 Packages
Ign:9 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main all Packages
Ign:10 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en_US
Ign:11 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en
Err:6 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Sources
404 Not Found
Ign:7 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main amd64 Packages
Ign:8 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main i386 Packages
Ign:9 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main all Packages
Ign:10 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en_US
Ign:11 mirrors.tuna.tsinghua.edu.cn/nodes... xenial/main Translation-en
Get:12 launchpad.proxy.ustclug.org/nginx/... xenial InRelease [17.5 kB]
Get:13 launchpad.proxy.ustclug.org/ondrej... xenial InRelease [23.9 kB]
Get:14 launchpad.proxy.ustclug.org/nginx/... xenial/main amd64 Packages [4,284 B]
Get:15 launchpad.proxy.ustclug.org/nginx/... xenial/main i386 Packages [4,288 B]
Get:16 dl.yarnpkg.com/debian stable InRelease [17.1 kB]
Get:17 launchpad.proxy.ustclug.org/nginx/... xenial/main Translation-en [4,324 B]
Get:18 launchpad.proxy.ustclug.org/ondrej... xenial/main amd64 Packages [102 kB]
Get:19 launchpad.proxy.ustclug.org/ondrej... xenial/main i386 Packages [101 kB]
Get:20 dl.yarnpkg.com/debian stable/main amd64 Packages [10.1 kB]
Get:21 launchpad.proxy.ustclug.org/ondrej... xenial/main Translation-en [39.4 kB]
Get:22 dl.yarnpkg.com/debian stable/main i386 Packages [10.1 kB]
Get:23 dl.yarnpkg.com/debian stable/main all Packages [10.1 kB]
Fetched 344 kB in 3s (97.5 kB/s)
Reading package lists…
W: The repository ‘mirrors.tuna.tsinghua.edu.cn/nodes... xenial Release’ does not have a Release file.
E: Failed to fetch mirrors.tuna.tsinghua.edu.cn/nodes... 404 Not Found
E: Some index files failed to download. They have been ignored, or old ones used instead.