Unable to locate an executable at "/Library/Java/JavaVirtualMachines/jdk-15.0.1.jdk/Contents/Home/bin/apt"

I'm trying to test out the DeepLab model and I'm having trouble running bash local_test.sh inside research/deeplab

Here's the error:

Uncompressing PascalVOC2012.zip
Unable to locate an executable at "/Library/Java/JavaVirtualMachines/jdk-15.0.1.jdk/Contents/Home/bin/apt" (-1)

I went into the address and couldn't find any file or folder named apt in /Library/Java/JavaVirtualMachines/jdk-15.0.1.jdk/Contents/Home/bin/

I'm using macOS 10.15, tensorflow 1.15, and python 3.7

I'm new to this so any help would be greatly appreciated!