ERROR in node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(2,48): error TS1039: Initializers are not allowed in ambient contexts.

i´m working with Angular 6 2.9, i´m trying to use the ng2-smart-table library. i got this issues :

**node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(3,46): error TS1039: Initializers are not allowed in ambient contexts.
node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(4,48): error TS1039: Initializers are not allowed in ambient contexts.
node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(5,49): error TS1039: Initializers are not allowed in ambient contexts.
node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(6,50): error TS1039: Initializers are not allowed in ambient contexts.
node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(7,43): error TS1039: Initializers are not allowed in ambient contexts.
node_modules/ng2-smart-table/lib/lib/data-source/server/server-source.conf.d.ts(8,42): error TS1039: Initializers are not allowed in ambient contexts.**

this is part of the package.json:

"dependencies": {
"@angular/animations": "^6.1.0",
"@angular/common": "^6.1.0",
"@angular/compiler": "^6.1.0",
"@angular/core": "^6.1.0",
"@angular/forms": "^6.1.0",
"@angular/http": "^6.1.0",
"@angular/platform-browser": "^6.1.0",
"@angular/platform-browser-dynamic": "^6.1.0",
"@angular/router": "^6.1.0",
"@ng-bootstrap/ng-bootstrap": "^3.3.1",
"bootstrap": "^4.3.1",
"core-js": "^2.5.4",
"crypto-js": "^3.1.9-1",
"ng2-smart-table": "^1.5.0",
"rxjs": "~6.2.0",
"zone.js": "~0.8.26"
},
"devDependencies": {
"@angular-devkit/build-angular": "~0.8.0",
"@angular/cli": "~6.2.9",
"@angular/compiler-cli": "^6.1.0",
"@angular/language-service": "^6.1.0",
"@types/jasmine": "~2.8.8",
"@types/jasminewd2": "~2.0.3",
"@types/node": "~8.9.4",
"codelyzer": "~4.3.0",
"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",
"ng2-completer": "^3.0.2",
"protractor": "~5.4.0",
"ts-node": "~7.0.0",
"tslint": "~5.11.0",
"typescript": "~2.9.2"
}
Hope you can help