C#•12mo ago

NLua problem

I'm trying to embed lua in my application and I'm stuck over a problem that it cannot pick method names from .NET LUA:

import ('System.Diagnostics')

Process:Start("notepad")

import ('System.Diagnostics')

Process:Start("notepad")

C#:

static void Main()
{
    Lua state = new Lua();
    state.LoadCLRPackage();
    string script = File.ReadAllText("script.lua");
    state.DoString(script);
}

static void Main()
{
    Lua state = new Lua();
    state.LoadCLRPackage();
    string script = File.ReadAllText("script.lua");
    state.DoString(script);
}

The error

Unhandled Exception: NLua.Exceptions.LuaScriptException: [string "chunk"]:3: attempt to index a nil value (global 'Process')
   at NLua.Lua.ThrowExceptionFromError(Int32 oldTop)
   at NLua.Lua.DoString(String chunk, String chunkName)
   at LuaEmbed.Program.Main() in D:\Dev\Sharp\LuaEmbed\LuaEmbed\Program.cs:line 15

Unhandled Exception: NLua.Exceptions.LuaScriptException: [string "chunk"]:3: attempt to index a nil value (global 'Process')
   at NLua.Lua.ThrowExceptionFromError(Int32 oldTop)
   at NLua.Lua.DoString(String chunk, String chunkName)
   at LuaEmbed.Program.Main() in D:\Dev\Sharp\LuaEmbed\LuaEmbed\Program.cs:line 15

20 Replies

x0rld 👻 🎃•12mo ago

https://stackoverflow.com/questions/31336767/how-to-integrate-lua-with-net they are saying moon# is better

Stack Overflow

How to Integrate Lua with .Net

Requirement is user should be able to add Lua script in text box, and then I need to check user has added proper Lua script and if script is correct then I need to run that script. Can anyone sugge...

toxidwormOP•12mo ago

I'm looking to use C# namespaces in lua

x0rld 👻 🎃•12mo ago

I don't find anything about that

canton7•12mo ago

toxidwormOP•12mo ago

Ohhh

canton7•12mo ago

I know nothing about NLua, but that was about 20 secs into reading the first google hit for "NLua"

toxidwormOP•12mo ago

I guess i'm blind lol It's still saying that the class doesn't exist

attempt to index a nil value (global 'Process')

attempt to index a nil value (global 'Process')

import ('System.Diagnostics')

Process.Start("notepad")

import ('System.Diagnostics')

Process.Start("notepad")

x0rld 👻 🎃•12mo ago

try System.Diagnostics.Process.Start("notepad.exe")

toxidwormOP•12mo ago

Nope

x0rld 👻 🎃•12mo ago

(╯°□°)╯︵ ┻━┻

toxidwormOP•12mo ago

attempt to index a nil value (global 'System')

x0rld 👻 🎃•12mo ago

https://github.com/NLua/NLua/issues/420

GitHub

Calling C# function from lua. · Issue #420 · NLua/NLua

I'm a total newbie when it comes to NLua but I have made a script that should work according to what I read in the read the readme. Here's my Lua code: function init() cs:Init() end functio...

x0rld 👻 🎃•12mo ago

check this issue maybe

canton7•12mo ago

Can you create a new Process instance? Can you do anything with any NET class?

toxidwormOP•12mo ago

This issue has no answers to my problem I'll try right now

x0rld 👻 🎃•12mo ago

they say how to give lua a c# class instance

toxidwormOP•12mo ago

they say how to give c# a lua function instead of giving the guy who wrote the issue instructions how to pass a c# class to lua

x0rld 👻 🎃•12mo ago

https://github.com/NLua/NLua/issues/420#issuecomment-846276206

GitHub

Calling C# function from lua. · Issue #420 · NLua/NLua

I'm a total newbie when it comes to NLua but I have made a script that should work according to what I read in the read the readme. Here's my Lua code: function init() cs:Init() end functio...

x0rld 👻 🎃•12mo ago

that

toxidwormOP•12mo ago

I think I figured it out But it's weird I'm able to call MessageBox.Show static method from System.Windows.Forms But I'm not able to call Process.Start from System.Diagnostics I'm able to call static classes using moonsharp @xtreit

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NLua problem