Global Environment Issues

Any time I try to call an api function from the loaded file I get an attempt to index a nil value error.
The environment code:

local program = {}
setmetatable(program, {__index = getfenv(1)})
local prog, err = loadfile(path)
setfenv(prog, program)
prog()

Edit: The problem only occurs when I try to use the shell API

Edit 2: This is the line that errors:

local sPath = shell.resolve( tArgs[1] )

Why not just shell.run(path)?

To fix the issue, you'd have to include the shell "api" in the environment table, but shell.run does all of this for you.

with

local program = {shell = shell}

I still get the same error

Post the whole code, please. We can't help very effectively if we're just guessing at what you're doing.

Solved it! Used a custom loadAPI function and it worked fine.