$ circom
path.js:39
throw new ERR_INVALID_ARG_TYPE('path', 'string', path);
^
TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received type undefined
at assertPath (path.js:39:11)
at Object.resolve (path.js:1088:7)
at Object.<anonymous> (/usr/lib/node_modules/circom/cli.js:44:27)
at Module._compile (internal/modules/cjs/loader.js:688:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:699:10)
at Module.load (internal/modules/cjs/loader.js:598:32)
at tryModuleLoad (internal/modules/cjs/loader.js:537:12)
at Function.Module._load (internal/modules/cjs/loader.js:529:3)
at Function.Module.runMain (internal/modules/cjs/loader.js:741:12)
at startup (internal/bootstrap/node.js:285:19)