我正在嘗試安裝 R。以前的帖子， 沒有成功。我使用的是 ubuntu 16.04.6 LTS 64 位元。
我嘗試了該方法，但我的終端視窗似乎什麼也沒做，即使當我嘗試關閉視窗時它說有進程正在運行。我試了幾次。現在我在頂部的灰色薄托盤中看到一條錯誤訊息：
An error occurred, please run the package manager from the right-click menu or apt-get in a terminal to see what is wrong.
錯誤訊息是：
Error: Opening the cache (E:type 'sudo' is not known on line 1 in source list /etc/apt/sources.list.d/r-cran.list,
E:The list of sources could not be read.)
This usually means that your installed packages have unmet dependencies.
啟動套件管理器（透過通知）沒有執行任何操作，我收到此訊息（附圖）：
E: Type 'sudo' is not known on line 1 in source list/etc/apt
sources.list.d/r-cran.list
E: The list of sources could not be read. Go to the repository dialogue to correct the problem.
E:_cache->open()failed, please report.
我不知道如何去儲存庫，也不知道如何報告。我該如何解決這個問題？
我也嘗試了相關的說明這個連結同樣，複製原始程式碼並貼上到終端中，這可能不是如何執行此操作，但我不知道如何存取該/etc/apt/sources.list文件。
@heynnema當我運行程式碼時它說cat：/etc/apt/sources.list.d/r-cran.list：沒有這樣的檔案或目錄
@heynnema 修復在這裡不起作用是終端的輸出：
(gedit:2641): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
** (gedit:2641): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-spell-enabled not supported
** (gedit:2641): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-encoding not supported
** (gedit:2641): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-spell-enabled not supported
** (gedit:2641): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-encoding not supported
** (gedit:2641): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-position not supported
helwalaura@Galactica:~$ sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
Executing: /tmp/tmp.L1dGqRuvRD/gpg.1.sh --keyserver
keyserver.ubuntu.com
--recv-keys
E298A3A825C0D65DFD57CBB651716619E084DAB9
gpg: requesting key E084DAB9 from hkp server keyserver.ubuntu.com
gpg: key E084DAB9: public key "Michael Rutter <[email protected]>" imported
gpg: Total number processed: 1
gpg: imported: 1 (RSA: 1)
helwalaura@Galactica:~$ sudo apt-get update
E: Type 'sudo' is not known on line 1 in source list /etc/apt/sources.list.d/r-cran.list
E: The list of sources could not be read.
helwalaura@Galactica:~$
@heynemma 這是結果cat /etc/apt/sources.list.d/r-cran.list
helwalaura@銀河:~$ cat /etc/apt/sources.list.d/r-cran.list
sudo tee /etc/apt/sources.list.d/r-cran.list
sudo cat <<EOF | sudo tee /etc/apt/sources.list.d/r-cran.list
deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/
@heynnema 當我刪除其他兩行程式碼時，這顯示在終端機視窗中：
(gedit:3157): Gtk-WARNING **: Calling Inhibit failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.SessionManager was not provided by any .service files
** (gedit:3157): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-spell-enabled not supported
** (gedit:3157): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-encoding not supported
** (gedit:3157): WARNING **: Set document metadata failed: Setting attribute metadata::gedit-position not supported
答案1
為了嘗試拾起這些碎片，我們將從頭開始...這應該讓您開始...使用複製/貼上以下幾行，因為其中一些非常長...
注意：部分/全部這些“R”軟體包位於 Ubuntu 19.10 儲存庫中。
在terminal...
sudo -H gedit /etc/apt/sources.list.d/r-cran.list
將其新增為文件中的唯一行...
deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/
儲存檔案並退出 gedit。
在terminal...一次複製/貼上一個指令到terminal...第一個指令很長...
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys E298A3A825C0D65DFD57CBB651716619E084DAB9
sudo apt-get update
sudo apt-get install r-base r-base-dev
來源：如何在 Ubuntu 16.04 Xenial 上安裝 R？
來源：https://cran.r-project.org/bin/linux/ubuntu/README.html
更新#1：
剩菜……但很容易解決……
sudo -H gedit /etc/apt/sources.list
轉到gedit首選項，然後啟用行編號。
轉到文件的最末尾（第 52 行），您可能會找到這樣的行...
deb https://cloud.r-project.org/bin/linux/ubuntu xenial-cran35/
刪除該行。儲存文件並退出gedit。
sudo apt-get update
sudo apt-get install r-base r-base-dev
我們應該完成了！