Error in running Resnet 50 Inference

[Shibijith]

I am trying to run Resnet 50 Inference using ONNX Runtime with Gemmini on a sample image as given in the gemmini tutorial
when running this command
spike --extension=gemmini pk ort_test -m resnet50_opt_quant.onnx -i images/dog.jpg -pcaffe2 -x 2 -O 99
I get the error

Gemmini extension configured with:
dim = 16
bbl loader
couldn't open ELF program: ort_test!
caffe2: command not found

please help