[FTC]: Error: Unable to find a hardware device with the name ""

[Undragonborn]

Hi! I am part a rookie FTC team and working on the programming of our robot. We are using the MIT app inventor to program, but every time we try to deploy our code to the ZTE Speed phone, we get the following error from the phone:

Error: Unable to find a hardware device with the name ""

What could be causing this? My apologies, this is our first time working with FTC hardware, so I am not entirely sure what to do here.