Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.

1. 问题

用MobaXterm 在Linux上以root 账号安装ERP 时候， 报错

>> Invocation target exception: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable; you may consider checking your DISPLAY environment variable.

如下设置后，依然报 Error: Can't open display: :0.0

mo-1:/hana/FSPER/730_731_740_750 # DISPLAY=:0.0

mo-1:/hana/FSPER/730_731_740_750 # export DISPLAY

mo-1:/hana/FSPER/730_731_740_750 # xclock

Error: Can't open display: :0.0

2、 解决办法

10.5.1.2 是你当前window 的IP， 换成你自己的IP

mo-1:/hana/FSPER/730_731_740_750 # export DISPLAY=10.5.1.2:0.0

mo-1:/hana/FSPER/730_731_740_750 # env|grep DISPLAY

DISPLAY=10.5.1.2:0.0

再 安装, 就好了。。。。。。

mo-1:/hana/FSPER/730_731_740_750 # ./sapinst