module 'cwrap' not found

[pannous]

Even after the successful installation of cwrap** and cleaning we cannot successfully manage to compile the project:

$ make
[ 3%] Built target TH
[ 44%] Built target luaT
[ 48%] Generating random.c
lua: random.lua:1: module 'cwrap' not found:
Failed loading module cwrap in LuaRocks rock cwrap scm-1

Any advice?

** cwrap installation successful:
$ luarocks --local --server=https://raw.github.com/torch/rocks/master install cwrap
Installing https://raw.github.com/torch/rocks/master/cwrap-scm-1.rockspec...
Using https://raw.github.com/torch/rocks/master/cwrap-scm-1.rockspec... switching to 'build' mode
Cloning into 'cwrap'...
remote: Counting objects: 8, done.
remote: Compressing objects: 100% (7/7), done.
remote: Total 8 (delta 0), reused 5 (delta 0)
Receiving objects: 100% (8/8), 9.80 KiB | 0 bytes/s, done.
Checking connectivity... done.
Updating manifest for $/.luarocks/lib/luarocks/rocks

cwrap scm-1 is now built and installed in $/.luarocks (license: BSD)

[soumith]

hey @pannous, it looks like the lua cant find the cwrap module, this happens when the path/cpath isn't set appropriately (i.e. maybe there's a lua pre-existing in the system that doesn't have the paths properly set).

The fastest way to get going with torch is to use the ezinstall scripts provided by us.

For a global system-wide install:
curl -s https://raw.githubusercontent.com/torch/ezinstall/master/install-all | bash

For installing torch in /local
curl -s https://raw.githubusercontent.com/torch/ezinstall/master/install-all | PREFIX=/local bash

[soumith]

let me know if that doesn't help.

[pannous]

Wow, that was quick and 100% helpful

Well somehow the make file tried to execute the lua files:

[ 51%] Generating TensorMath.c
make[2]: /Users/me/ai/torch7/TensorMath.lua: Permission denied
[ 48%] Generating TensorMath.c
/Users/me/ai/torch7/TensorMath.lua: line 1: local: can only be used in a function

but adding a shebang
#!/usr/bin/env lua -lluarocks.loader
made it work!

Linking C shared module libtorch.so
[100%] Built target torch

Thanks!

[ZhangChenyang]

Hi @soumith , I used the ezinstall you post but the path to gfortran cannot be found; while if I cmake under torch7/ it can be found, how can I make it work?

[ZhangChenyang]

Hi @pannous , I met the Permission Denied problem and cannot make it work, where you suggest to put that shebang into?

[pannous]

You have to put it on top of those two lua files which are affected,
I think one was Random.lua I forgot the other one

On Jul 10, 2014, at 12:24 AM, ZhangChenyang notifications@github.com wrote:

Hi @pannous , I met the Permission Denied problem and cannot make it work, where you suggest to put that shebang into?

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Reply to this email directly or view it on GitHub.

[soumith]

@ZhangChenyang we just patched the ezinstall scripts and some cmake files to not depend on gfortran!