node Buffer error in cmis.ts

[prophetw]

ERROR in node_modules/cmis/src/cmis.ts(228,50): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node. node_modules/cmis/src/cmis.ts(328,34): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node. node_modules/cmis/src/cmis.ts(795,32): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node. node_modules/cmis/src/cmis.ts(885,32): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node. node_modules/cmis/src/cmis.ts(1016,32): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node. node_modules/cmis/src/cmis.ts(1094,32): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node. node_modules/cmis/src/cmis.ts(1120,32): error TS2580: Cannot find name 'Buffer'. Do you need to install type definitions for node? Try npm i @types/node.

Angular CLI: 7.0.6 Node: 10.13.0 OS: darwin x64 Angular: 7.0.4

package.json { "name": "angular-cmis", "version": "0.0.0", "scripts": { "ng": "ng", "start": "ng serve", "build": "ng build", "test": "ng test", "lint": "ng lint", "e2e": "ng e2e" }, "private": true, "dependencies": { "@angular/animations": "~7.0.0", "@angular/common": "~7.0.0", "@angular/compiler": "~7.0.0", "@angular/core": "~7.0.0", "@angular/forms": "~7.0.0", "@angular/http": "~7.0.0", "@angular/platform-browser": "~7.0.0", "@angular/platform-browser-dynamic": "~7.0.0", "@angular/router": "~7.0.0", "cmis": "^1.0.1", "core-js": "^2.5.4", "rxjs": "~6.3.3", "zone.js": "~0.8.26" }, "devDependencies": { "@angular-devkit/build-angular": "~0.10.0", "@angular/cli": "~7.0.6", "@angular/compiler-cli": "~7.0.0", "@angular/language-service": "~7.0.0", "@types/jasmine": "~2.8.8", "@types/jasminewd2": "~2.0.3", "@types/node": "^7.0.7", "codelyzer": "~4.5.0", "jasmine-core": "~2.99.1", "jasmine-spec-reporter": "~4.2.1", "karma": "~3.0.0", "karma-chrome-launcher": "~2.2.0", "karma-coverage-istanbul-reporter": "~2.0.1", "karma-jasmine": "~1.1.2", "karma-jasmine-html-reporter": "^0.2.2", "protractor": "~5.4.0", "ts-node": "~7.0.0", "tslint": "~5.11.0", "typescript": "~3.1.6" } }

tsconfig.json { "compileOnSave": false, "compilerOptions": { "baseUrl": "./", "outDir": "./dist/out-tsc", "sourceMap": true, "declaration": false, "module": "es2015", "moduleResolution": "node", "types": ["node"], "emitDecoratorMetadata": true, "experimentalDecorators": true, "target": "es5", "typeRoots": [ "node_modules/@types" ], "lib": [ "es2018", "dom" ] } }