Snowboy error

[tanvir586]

hi can anyone help me with snowboy. im getting this error

…/…/…/node_modules/@types/unist/index.d.ts:31:20 - error TS2304: Cannot find name ‘unknown’.

31 [key: string]: unknown;

…/…/…/node_modules/@types/unist/index.d.ts:40:20 - error TS2304: Cannot find name ‘unknown’.

40 [key: string]: unknown;

…/…/…/node_modules/@types/unist/index.d.ts:97:12 - error TS2304: Cannot find name ‘unknown’.

97 value: unknown;

…/…/…/node_modules/@types/vfile/index.d.ts:48:15 - error TS2304: Cannot find name ‘unknown’.

48 data: unknown;

…/…/…/node_modules/vfile-message/types/index.d.ts:67:20 - error TS2304: Cannot find name ‘unknown’.

67 [key: string]: unknown

/home/pi/MagicMirror/modules/MMM-Hotword/snowboy/node_modules/typescript/lib/lib.es6.d.ts
/home/pi/MagicMirror/modules/MMM-Hotword/snowboy/lib/node/index.ts
/home/pi/MagicMirror/modules/MMM-Hotword/snowboy/lib/node/node-pre-gyp.d.ts
/home/pi/MagicMirror/modules/MMM-Hotword/snowboy/lib/node/SnowboyDetectNative.d.ts
/home/pi/MagicMirror/modules/MMM-Hotword/snowboy/node_modules/@types/node/base.d.ts
/home/pi/MagicMirror/modules/MMM-Hotword/snowboy/node_modules/@types/node/index.d.ts
/home/pi/MagicMirror/node_modules/@types/events/index.d.ts
/home/pi/MagicMirror/node_modules/@types/minimatch/index.d.ts
/home/pi/MagicMirror/node_modules/@types/glob/index.d.ts
/home/pi/MagicMirror/node_modules/@types/unist/index.d.ts
/home/pi/MagicMirror/node_modules/vfile-message/types/index.d.ts
/home/pi/MagicMirror/node_modules/@types/vfile/index.d.ts
npm ERR! code ELIFECYCLE
npm ERR! errno 2
npm ERR! snowboy@1.3.1 prepublish: tsc --listFiles
npm ERR! Exit status 2
npm ERR!
npm ERR! Failed at the snowboy@1.3.1 prepublish script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR! /home/pi/.npm/_logs/2019-11-26T19_05_15_846Z-debug.log