Torch7 Lua, error loading module 'libpaths'

Question

I am a new user to TORCH LDT. I have trouble loading module 'libpaths' (on Ubuntu). The error log is:

Exception in thread "main" com.naef.jnlua.LuaRuntimeException: error loading module 'libpaths' from file '/usr/local/lib/lua/5.1/libpaths.so': /usr/local/lib/lua/5.1/libpaths.so: undefined symbol: lua_gettop at com.naef.jnlua.LuaState.lua_pcall(Native Method) at com.naef.jnlua.LuaState.call(LuaState.java:555) at org.eclipse.koneki.ldt.support.lua51.internal.interpreter.JNLua51Launcher.run(JNLua51Launcher.java:128) at org.eclipse.koneki.ldt.support.lua51.internal.interpreter.JNLua51DebugLauncher.main(JNLua51DebugLauncher.java:24)

What might be the problem? Thanks in advance!

Answer 1

This is how to configure torch + eclipse:

1) Configure the Lua interpreter with torch:

Go to Windows -> Preference -> Lua -> interpreter:

• Interpreter Type : Lua 5.2

• Interpreter executable : /opt/torch/install/bin/qlua (-> this is required to use qt features)

• Interpreter name : Qt + Torch Interpreter arguments : -lenv -e "io.stdout:setvbuf('no'); if os.getenv('DEBUG_MODE') then require 'debugger' ; require 'debugger.plugins.ffi'end"

• LinkedExecution argument : Lua 5.2

2) Pick this interpreter as a default interpreter

3) Also Working with an external interpreter, require that "LuaSocket" packet is installed, You will get a message error of "libsocket.so not found" when debugging if it is not installed

To install LuaSocket, you may try :

sudo luarocks install luasocket --only-server=http://luarocks.org/repositories/rocks-scm

or

sudo luarocks install luasocket

or

luarocks install luasocket

Credits to STRUB Floriab