loadcaffe error

[zhangxw87]

Hi,
when using require 'loadcaffe', I got the following error

/data3/zhangxiaowei/tools/torch/install/bin/luajit: ...xiaowei/tools/torch/install/share/lua/5.1/trepl/init.lua:389: ...owei/tools/torch/install/share/lua/5.1/loadcaffe/ffi.lua:10: /data3/zhangxiaowei/tools/torch/install/lib/lua/5.1/libloadcaffe.so: undefined symbol: _ZN6google8protobuf18GoogleOnceInitImplEPlPNS0_7ClosureE
stack traceback:
[C]: in function 'error'
...xiaowei/tools/torch/install/share/lua/5.1/trepl/init.lua:389: in function 'require'
style-swap.lua:68: in main chunk
[C]: in function 'dofile'
...ools/torch/install/lib/luarocks/rocks/trepl/scm-1/bin/th:150: in main chunk
[C]: at 0x00405d50

I think the problem may be with protobuf. My protobuf version is
libprotoc 3.5.0
Any idea how I can solve it?