NAND() circuit in README not getting complied

[m0bi5]

I am following the README and trying compile the NAND() circuit. However, when I run circom mycircuit.circom -o circom.json, the circom.json file does not get created. I can verify that circom is installed and commands like circom --help works. Please let me know what I am missing.

Platform: Mac OSX, M1 chip
Installed npm using brew install node
Followed by npm install -g circom to install circom

[rqzrqh]

It seems .json is not supported now, .r1cs is more popular. Snarkjs can recognize .r1cs and export json format.

[PowersOfTau]

for time being, you can use the following:

circom nand.circom -r nand.r1cs
to generate r1cs format then
snarkjs r1cs export json nand.r1cs nand.r1cs.json
to generate a json