Torch7 Lua, error loading module 'libpaths' (Linux)

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!

mdilip · Accepted Answer · 2015-07-28 10:57:59Z

2

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

edited Jul 28, 2015 at 10:57

answered Jul 1, 2015 at 11:44

mdilip

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3 Comments

mdilip Over a year ago

This link may help you to set Lua Interpreter

user864128 Over a year ago

Thanks for your detailed reply! However, I tried, and it doesn't help. I only change the interpreter executable step:/opt/torch/ by changing to the location of torch folder. It still shows the same error log. Thx!

mdilip Over a year ago

Have you kept the same path that you get by doing 'which qlua' in terminal, in interpreter executable, also did you install luasocket?, which ubuntu version are you using?

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