topic How to create a snap with C SDK in ThingWorx Developers

How to create a snap with C SDK

RK_14053982 — Mon, 24 Nov 2025 10:54:45 GMT

Hi,

I have this code I can compile with C-SDK I want to make a .snap from.

I'm using the version 3.2.0.3436.

I used cmake and everything worked fine between thingworx and the agent I coded.

The architecture is as such :

> c-sdk

> build

> examples

> my code

> lib

> src

> test

cmake is done in c-sdk>build

The thing is, I now need to make a snap from this project and I don't really know where to start. If I make my snap from my project, I have the same errors I used to have before I did cmake in c-sdk>build (twApi.h: No such file or directory).

I even tried to correct it by adding this in my CMakeLists.txt :

include_directories(

${TW_SDK_PATH}/include

include

${TW_SDK_PATH}/src

${TW_SDK_PATH}/src/api

${TW_SDK_PATH}/src/config

${TW_SDK_PATH}/src/fileTransfer

....)

But then I was met with these errors : "unknown type name 'DATETIME'" and many others.

Can anyone help me build that project correctly ? I am lacking a lot and still learning. I've never coded in C or Thingworx before so everything is new to me.

The finale result would be to have a snap. Is it even possible at this point ?

Thank you to anyone who could help !

Re: How to create a snap with C SDK

Rocko — Tue, 25 Nov 2025 07:24:53 GMT

This is more a snap question than a CSDK or ThingWorx question, I suggest you try a snap forum.

Re: How to create a snap with C SDK

Constantine — Thu, 27 Nov 2025 17:54:23 GMT

Hello,

Check Snapcraft docs: https://documentation.ubuntu.com/snapcraft/stable/how-to/integrations/craft-a-c-or-cpp-app/

Use "plugin: cmake" in snapcraft.yaml, here's a minimal example: https://github.com/snapcraft-docs/cmake-classic-example

Snap enables Network interface by default, so you shouldn't need to set any extra permissions.

Just out of curiosity -- why a snap? The best thing about snaps is that they can be published to snapcraft.io, which is probably not what you plan to do. Otherwise AppImage sounds like a more obvious, cross-platform, dependency-free packaging mechanism, and they are easier to create...

/ Constantine