FDK Validation Error

(node:1884) UnhandledPromiseRejectionWarning: TypeError: configuration.fastestFunction is not a function
    at sendMessage (C:\Users\Lenovo\AppData\Roaming\npm\node_modules\fdk\node_modules\sync-rpc\lib\index.js:134:29)
    at createClient (C:\Users\Lenovo\AppData\Roaming\npm\node_modules\fdk\node_modules\sync-rpc\lib\index.js:173:27)
    at Object.<anonymous> (C:\Users\Lenovo\AppData\Roaming\npm\node_modules\fdk\node_modules\sync-request\lib\index.js:16:14)
    at Module._compile (internal/modules/cjs/loader.js:999:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (C:\Users\Lenovo\AppData\Roaming\npm\node_modules\fdk\lib\validations\manifest-dependency.js:4:21)
    at Module._compile (internal/modules/cjs/loader.js:999:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1027:10)
    at Module.load (internal/modules/cjs/loader.js:863:32)
    at Function.Module._load (internal/modules/cjs/loader.js:708:14)
    at Module.require (internal/modules/cjs/loader.js:887:19)
    at require (internal/modules/cjs/helpers.js:74:18)
(node:1884) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 2)
(node:1884) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.