Probably you have the different vesrion of CUDA, not 8.0

Test the version of your cuda through the command:
$ nvcc --version

It will show the version of your CUDA compiler driver.
Also you can go to /usr/local and find the folder with CUDA (cuda-8.0 or cuda-10.2)

Then open the Makefile (in Kangaroo project) and edit the folder for CUDA
You will find a line:
CUDA    = /usr/local/cuda-8.0

Change it to your cuda driver folder like this:
CUDA    = /usr/local/cuda-10.2

Save the edited Makefile and run the make command again (do not forget to run make clean as I wrote before)

It should work now.