-----------------------------[ ANTICONF ]-------------------------------

Configuration failed to find the libv8 engine library. Try installing:

 * deb: libv8-dev or libnode-dev (Debian / Ubuntu)

 * rpm: v8-devel (Fedora, EPEL)

 * brew: v8 (OSX)

 * csw: libv8_dev (Solaris)

To use a custom libv8, set INCLUDE_DIR and LIB_DIR manually via:

R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'

---------------------------[ ERROR MESSAGE ]----------------------------

<stdin>:1:10: fatal error: v8.h: No such file or directory

compilation terminated.

------------------------------------------------------------------------

ERROR: configuration failed for package 'V8'

* removing '/home/liujason/R/x86_64-pc-linux-gnu-library/3.6/V8'

Warning in install.packages :

  installation of package 'V8' had non-zero exit status

* installing *source* package 'jqr' ...

** package 'jqr' successfully unpacked and MD5 sums checked

** using staged installation

Using PKG_CFLAGS=

Using PKG_LIBS=-ljq

------------------------- ANTICONF ERROR ---------------------------

Configuration failed because libjq was not found.

On Ubuntu 14.04 or 16.04 you can use the PPA:

  sudo add-apt-repository -y ppa:opencpu/jq

  sudo apt-get update

  sudo apt-get install libjq-dev

On other sytems try installing:

 * deb: libjq-dev (Debian, Ubuntu 16.10 and up).

 * rpm: jq-devel (Fedora, EPEL)

 * csw: libjq_dev (Solaris)

 * brew: jq (OSX)

If  is already installed set INCLUDE_DIR and LIB_DIR manually via:

R CMD INSTALL --configure-vars='INCLUDE_DIR=... LIB_DIR=...'

--------------------------------------------------------------------

ERROR: configuration failed for package 'jqr'

* removing '/home/liujason/R/x86_64-pc-linux-gnu-library/3.6/jqr'

Warning in install.packages :

  installation of package 'jqr' had non-zero exit status