Encountering errors while initiating a project using Express and NestJS

While working on my nestJS project, I encountered an error upon starting the project. Could this be due to an issue with the @types/express package? Or perhaps it's something that I have configured incorrectly? Any insights or tips would be greatly appreciated. Thanks.

[14:17:06] Starting compilation in watch mode...

node_modules/@types/express/index.d.ts:99:42 - error TS2344: Type 'P' does not satisfy the constraint 'Params'.
      Type 'P' is not assignable to type 'ParamsArray'.

     extends core.ErrorRequestHandler<P, ResBody, ReqBody, ReqQuery> { }
                                        ~

node_modules/@types/express/index.d.ts:108:124 - error TS2344: Type 'P' does not satisfy the constraint 'Params'.
      Type 'P' is not assignable to type 'ParamsArray'.

     interface Request<P = core.ParamsDictionary, ResBody = any, ReqBody = any, ReqQuery = core.Query> extends core.Request<P, ResBody, ReqBody, ReqQuery> { }
                                                                                                                          
node_modules/@types/express/index.d.ts:109:138 - error TS2344: Type 'P' does not satisfy the constraint 'Params'.
      Type 'P' is not assignable to type 'ParamsArray'.

     interface RequestHandler<P = core.ParamsDictionary, ResBody = any, ReqBody = any, ReqQuery = core.Query> extends core.RequestHandler<P, ResBody, ReqBody, ReqQuery> { }
                                                                                                                                        
[14:17:17] Found 3 errors. Watching for file changes.

Answer №1

Dealing with compilation issues can be frustrating. Simply removing package-lock.json may not always solve the problem. One potential solution that worked for me was running

npm update @types/express-serve-static-core --depth 1
. This suggestion was found in a relevant discussion on the associated thread.

Answer №2

as indicated in this reference, simply delete the package-lock.json file and then proceed with reinstalling the packages.

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