loop or previous error loading module 'torch'

[daxiji]

Hi，I ever saw other similar issues, but it's a little bit different…I don't know how to solve it.
Can you give me some suggestions?

when I run "th …… .lua"
/home/liming/torch/install/bin/luajit: /home/liming/torch/install/share/lua/5.1/trepl/init.lua:389: /home/liming/torch/install/share/lua/5.1/trepl/init.lua:389: loop or previous error loading module 'torch' stack traceback: [C]: in function 'error' /home/liming/torch/install/share/lua/5.1/trepl/init.lua:389: in function 'require' main_test_bound_realsense.lua:1: in main chunk [C]: in function 'dofile' ...ming/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk [C]: at 0x55cb16a8e0e0

"th" is okay. But "th> require 'nn'
/home/liming/torch/install/share/lua/5.1/trepl/init.lua:389: /home/liming/torch/install/share/lua/5.1/trepl/init.lua:389: loop or previous error loading module 'torch' stack traceback: [C]: in function 'error' /home/liming/torch/install/share/lua/5.1/trepl/init.lua:389: in function 'require' [string "_RESULT={require 'nn'}"]:1: in main chunk [C]: in function 'xpcall' /home/liming/torch/install/share/lua/5.1/trepl/init.lua:661: in function 'repl' ...ming/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:204: in main chunk [C]: at 0x55e28d56d0e0

and "luajit -ltorch" "luajit -llibtorch"
luajit: /home/liming/torch/install/share/lua/5.1/torch/init.lua:13: cannot load '/home/liming/torch/install/lib/lua/5.1/libtorch.so' stack traceback: [C]: in function 'require' /home/liming/torch/install/share/lua/5.1/torch/init.lua:13: in main chunk [C]: at 0x55abc7ff99e0 [C]: at 0x55abc7f950e0
luajit: error loading module 'libtorch' from file '/home/liming/torch/install/lib/lua/5.1/libtorch.so': libgfortran.so.4: cannot open shared object file: No such file or directory stack traceback: [C]: at 0x55c30ab91640 [C]: at 0x55c30ab819e0 [C]: at 0x55c30ab1d0e0

I also check the path "~/torch/install/lib"
libluaT.so.0 exits

[daxiji]

@soumith