卷曲包未安装

在安装curl包装时

install.packages("curl")
Installing package into ‘/home/mrshekar/R/x86_64-pc-linux-gnu-library/3.4’
(as ‘lib’ is unspecified)
trying URL 'https://cloud.r-project.org/src/contrib/curl_3.2.tar.gz'
Content type 'application/x-gzip' length 367047 bytes (358 KB)
==================================================
downloaded 358 KB

* installing *source* package ‘curl’ ...
** package ‘curl’ successfully unpacked and MD5 sums checked
’

之后，我从https://packages.ubuntu.com/xenial/amd64/libcurl4-openssl-dev/download安装了libcurl软件包。然后，我还将整个packae文件夹复制到r的库文件夹中。仍然在安装curl包装时出现错误

Package libcurl was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libcurl.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libcurl' found
    Package libcurl was not found in the pkg-config search path.
    Perhaps you should add the directory containing `libcurl.pc'
    to the PKG_CONFIG_PATH environment variable
    No package 'libcurl' found
    Using PKG_CFLAGS=
    Using PKG_LIBS=-lcurl
    ------------------------- ANTICONF ERROR ---------------------------
    **Configuration failed because libcurl was not found**. Try installing:
     * deb: **libcurl4-openssl-dev** (Debian, Ubuntu, etc)
     * rpm: libcurl-devel (Fedora, CentOS, RHEL)
     * csw: libcurl_dev (Solaris)
    If libcurl is already installed, check that 'pkg-config' is in your
    PATH and PKG_CONFIG_PATH contains a libcurl.pc file. If pkg-config
    is unavailable you can set INCLUDE_DIR and LIB_DIR manually via:
    R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'
    --------------------------------------------------------------------
    ERROR: configuration failed for package ‘curl’
    * removing ‘/home/mrshekar/R/x86_64-pc-linux-gnu-library/3.4/curl’
    Warning in install.packages :
      installation of package ‘curl’ had non-zero exit status

    The downloaded source packages are in
        ‘/tmp/RtmpmQeo3q/downloaded_packages

我错在哪里？像Shiny和ggplot这样的不同软件包都以相同的方式下载和加载。有人可以帮忙吗？发生这种情况是因为我必须最终安装Quantmod软件包，但它给出了无法安装curl依赖项的信息

libcurl4-openssl-dev不是R包，而是linux库。

在控制台中：

sudo apt-get install libcurl4-openssl-dev

注意：您需要使用sudo功能。

配置中的答案失败，因为找不到libcurl