# Set up your environment for QNX

> Set up your environment to develop for QNX.

Set up your environment to develop with QNX.

To create a Unity application for QNX, you first need to set up your Unity project to support QNX. To support QNX, a Unity project requires certain environment variables and dependencies.

> **Note:**
>
> You must install the QNX platform package before you can set up your environment. For more information, refer to [Install the platform package for QNX](/engine/6000.5/manual/platform-specific/embedded-systems/qnx/get-started/install-editor.md).

## Set the environment variables

After you have installed the Unity Editor, you will need to set the environment variables. Open a terminal window and run one of the following commands to set the environment variables in the local shell and start the Editor from there.

* `qnxsdp-env.bat` (Windows)
* `source path/qnxsdp-env.sh` (Linux and macOS)

Alternatively, you can set the environment variables `QNX_TARGET` and `QNX_HOST` either locally in a terminal or globally, and then run the Editor.

These are the environment variables you need to set:

* `QNX_TARGET=/path/to/target/qnx`
* `QNX_HOST=/path/to/host/platform/arch`
* Add to `PATH:` `$QNX_HOST/usr/bin` (for QNX 7.1 only)

## Dependencies

QNX must provide direct and indirect dependencies so Unity can run correctly.

### Direct dependencies

Direct dependencies load at the application startup. Use the following dependencies for all versions of QNX:

* `libm.so.3`
* `libgcc_s.so.1`
* `libscreen.so.1`

Then, add dependencies specific to your version of QNX:

| **QNX version** | **Supported dependencies**                                           |
| --------------- | -------------------------------------------------------------------- |
| **QNX 7.1**     | `libc.so.5``libsocket.so.3` (also known as `io-pkt`)`libasound.so.3` |
| **QNX 8.0**     | `libc.so.6``libsocket.so.4` (also known as `io-sock`)                |

> **Note:**
>
> QNX 8.0 has no sound support so doesn't need the `libasound` dependency.

### Indirect dependencies

Indirect dependencies load when needed during the application runtime, as a shared library.

| **Type**      | **Dependencies**                                                  |
| ------------- | ----------------------------------------------------------------- |
| **Webcam**    | `libcamapi.so` (for QNX 7.1 only; QNX 8.0 has no camera support.) |
| **OpenGL ES** | `libEGL.so.1`, `libGLESv2.so.1`                                   |
| **Devices**   | `libudev.so.1`                                                    |

## Troubleshooting

If you notice one of the following issues in the Build Profiles window, then the QNX SDP Environment isn't set up correctly:

* **Unable to find QNX\_TARGET in Environment.**
* **The build environment does not fit the selected QNX Version.**
* **The build environment does not contain the selected QNX Architecture.**

Before starting the Editor, always check that you have the QNX SDP Environment set up correctly for the Editor to register it. For more information, refer to [QNX Software Center](https://www.qnx.com/download/group.html?programid=29178).

## Additional resources

* [QNX product documentation](http://www.qnx.com/developers/docs/index.html)
* [Create a minimal URP setup for embedded platforms](/engine/6000.5/manual/platform-specific/embedded-systems/embedded-platforms-minimal-urp-setup.md)