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Ubuntu 18.04 kann Mono nicht installieren

tag-icon • tag-icon 18.04 apt mono
Ubuntu 18.04 kann Mono nicht installieren

(Ich habe die scheinbar ähnlichen Fragen untersucht, die ich finden konnte, und bin zu dem Schluss gekommen, dass es sich nicht um ein Duplikat handelt.)

Fehlermeldung:

Err:1 https://download.mono-project.com/repo/ubuntu stable-bionic/main amd64 libmono-corlib4.5-cil all 6.12.0.122-0xamarin1+ubuntu1804b1
  504  Gateway Timeout [IP: 117.18.232.200 443]
Get:2 https://download.mono-project.com/repo/ubuntu stable-bionic/main amd64 libmono-system-servicemodel-routing4.0-cil all 6.12.0.122-0xamarin1+ubuntu1804b1 [41.6 kB]
Fetched 41.6 kB in 16s (2,555 B/s)                                    
E: Failed to fetch https://download.mono-project.com/repo/ubuntu/pool/main/m/mono/libmono-corlib4.5-cil_6.12.0.122-0xamarin1+ubuntu1804b1_all.deb  504  Gateway Timeout [IP: 117.18.232.200 443]
E: Unable to fetch some archives, maybe run apt-get update or try with --fix-missing?

Die folgenden Vorgänge wurden versucht, aber keiner hat funktioniert.

  1. apt-get update
  2. folge dem Mono-DownloadAnweisungenfür Ubuntu 18.04:
    1. sudo apt install gnupg ca-certificates
    2. sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 3FA7E0328081BFF6A14DA29AA6A19B38D3D831EF
    3. `echo "debhttps://download.mono-project.com/repo/ubuntu„stable-bionic main“ | sudo tee /etc/apt/sources.list.d/mono-official-stable.list
    4. Index aktualisieren
  3. erneut installieren mit fix-missing.

Betriebssysteminfo:

> uname -a
Linux **** 5.4.0-87-generic #98~18.04.1-Ubuntu SMP Wed Sep 22 10:45:04 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

EIDT: Ich kann das Timeout-DEB-Paket direkt von der URL abrufen, aber bei der Installation hieß es:

dpkg: dependency problems prevent configuration of libmono-system-servicemodel-routing4.0-cil:
 libmono-system-servicemodel-routing4.0-cil depends on libmono-corlib4.5-cil (>= 4.0.0~alpha1); however:
  Package libmono-corlib4.5-cil is not installed.
 libmono-system-servicemodel-routing4.0-cil depends on libmono-system-configuration4.0-cil (>= 4.0.0~alpha1); however:
  Package libmono-system-configuration4.0-cil is not installed.
 libmono-system-servicemodel-routing4.0-cil depends on libmono-system-runtime-serialization4.0-cil (>= 4.0.0~alpha1); however:
  Package libmono-system-runtime-serialization4.0-cil is not installed.
 libmono-system-servicemodel-routing4.0-cil depends on libmono-system-servicemodel4.0a-cil (>= 3.2.3); however:
  Package libmono-system-servicemodel4.0a-cil is not installed.
 libmono-system-servicemodel-routing4.0-cil depends on libmono-system4.0-cil (>= 4.0.0~alpha1); however:
  Package libmono-system4.0-cil is not installed.

dpkg: error processing package libmono-system-servicemodel-routing4.0-cil (--install):
 dependency problems - leaving unconfigured
Errors were encountered while processing:
 libmono-system-servicemodel-routing4.0-cil

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