I'm trying to use this migrator and this error is happening when a try run the project, can someone help?

[Josecaetanofaganello]

PS C:\git4\flex-layout-migrator> npm run start -- C:\git4\AppManager\front_end\ --output C:\git4\FrontMigrado\

@ng-flex/[email protected] start
ts-node ./src/main.ts C:\git4\AppManager\front_end\ --output C:\git4\FrontMigrado\

C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:859
return new TSError(diagnosticText, diagnosticCodes, diagnostics);
^
TSError: ⨯ Unable to compile TypeScript:
src/lib/prettier.formatter.ts:1:48 - error TS7016: Could not find a declaration file for module 'prettier'. 'C:/git4/flex-layout-migrator/node_modules/prettier/index.js' implicitly has an 'any' type.
Try npm i --save-dev @types/prettier if it exists or add a new declaration (.d.ts) file containing declare module 'prettier';

1 import { resolveConfig, format, Options } from 'prettier';
~~~~~~~~~~

at createTSError (C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:859:12)
at reportTSError (C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:863:19)
at getOutput (C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:1077:36)
at Object.compile (C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:1433:41)
at Module.m._compile (C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:1617:30)
at Module._extensions..js (node:internal/modules/cjs/loader:1155:10)
at Object.require.extensions.<computed> [as .ts] (C:\git4\flex-layout-migrator\node_modules\ts-node\src\index.ts:1621:12)   
at Module.load (node:internal/modules/cjs/loader:981:32)
at Function.Module._load (node:internal/modules/cjs/loader:822:12)
at Module.require (node:internal/modules/cjs/loader:1005:19) {

diagnosticCodes: [ 7016 ]