unable to start device PNG

 

1、问题

unable to start device PNG

 

 

 

2、排查，进入R，输入：capabilities()

 

 3、测试

> png("a.png")
Error in .External2(C_X11, paste0("png::", filename), g$width, g$height,  :
  unable to start device PNG
In addition: Warning message:
In png("a.png") : unable to open connection to X11 display ''
> jpeg("a.jpeg")
Error in .External2(C_X11, paste0("jpeg::", quality, ":", filename), g$width,  :
  unable to start device JPEG
In addition: Warning message:
In jpeg("a.jpeg") : unable to open connection to X11 display ''
> bmp("a.bmp")
Error in .External2(C_X11, paste0("bmp::", filename), g$width, g$height,  :
  unable to start device BMP
In addition: Warning message:
In bmp("a.bmp") : unable to open connection to X11 display ''

 

 4、退出R，执行如下命令：

[root@centos7 test2]# yum install libpng-devel libtiff-devel libjpeg-turbo-devel pango-devel libpng-devel -y

 

5、回到R编译安装目录

[root@centos7 test2]# cd /home/software/R-4.1.3/
[root@centos7 R-4.1.3]# ls
bin            etc          Makefile        README
ChangeLog      include      Makefile.fw     share
config.log     INSTALL      Makefile.in     src
config.site    lib          Makefrag.cc     stamp-java
config.status  library      Makefrag.cc_lo  SVN-REVISION
configure      libtool      Makefrag.cxx    tests
configure.ac   m4           Makefrag.m      tools
COPYING        Makeconf     modules         VERSION
doc            Makeconf.in  po              VERSION-NICK

 

6、卸载R

[root@centos7 R-4.1.3]# make uninstall

 

7、重新编译安装

[root@centos7 R-4.1.3]# ./configure

[root@centos7 R-4.1.3]# make
[root@centos7 R-4.1.3]# make install

 

 

8、进入R，进行测试

> png("a.png")
> jpeg("a.jpeg")

 

 

 没有问题。