View or Make Changes to Project Properties

Click the “Conf: [default]” category to reveal the general project configuration, such as the project device, related debug/programmer tool, and language tool.

Categories The project configuration is set as “default” when created. You can create different configurations by clicking the Manage Configurations button. See Work with Multiple Configurations.
Device This should be the device simulated or the device on the board.

Care should be taken when changing the device, especially to one from a different family, as the pack, hardware tool and compiler will need to be updated.

Packs This is the device family pack (DFP) version for the selected device. The latest version of MPLAB X IDE will contain the latest DFP version. However, you may change to a different version, if available. See Work with Device Packs.
Hardware A supported hardware debug tool (or Simulator) should be selected. See Project Tool Support.
Compiler Toolchain A supported language tool (usually compiler) should be selected. See Project Tool Support.

To get the latest version of an MPLAB XC C compiler, click the “Download Latest” link. See Download Latest MPLAB XC Compilers.

Figure 1. Project Properties Window - Default Configuration