MMM Google assistant i get error

[Chethan]

when am run the mmm google assistance i get this error
after complet all steps when am give this cmd

cd ~/MagicMirror/modules/MMM-GoogleAssistant
node auth_and_test.js

internal/modules/cjs/loader.js:638
throw err;
^

Error: Cannot find module ‘@bugsounet/google-assistant’
at Function.Module._resolveFilename (internal/modules/cjs/loader.js:636:15)
at Function.Module._load (internal/modules/cjs/loader.js:562:25)
at Module.require (internal/modules/cjs/loader.js:692:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/home/pi/MagicMirror/modules/MMM-GoogleAssistant/auth_and_test.js:7:25)
at Module._compile (internal/modules/cjs/loader.js:778:30)
at Object.Module._extensions…js (internal/modules/cjs/loader.js:789:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)

[sdetweil]

@chethan did you do the module install steps?

[Chethan]

@sdetweil yes everything is complete at the end i get this error