Cannot find module 'passport' or its corresponding type declarations.

Argument of type 'T' is not assignable to parameter of type 'Strategy'.

Argument of type 'string' is not assignable to parameter of type '{ [field: string]: any; }'.

Definitions of the following identifiers conflict with those in another file: Date, Decimal128, Mixed, Number, ObjectId, SchemaTypes, Schema, SchemaTypeOptions, SchemaType

Definitions of the following identifiers conflict with those in another file: Mongoose, Promise, PromiseProvider, models, mongo, version, AnyKeys, SchemaDefinitionWithBuiltInClass, SchemaDefinitionProperty, SchemaDefinition, RefType, VirtualType, ReturnsNewDoc, SortValues, UpdateWithAggregationPipeline, UpdateAggregationStage, UpdateQuery, DocumentDefinition, actualPrimitives, TreatAsPrimitives, LeanType, LeanArray, _LeanDocument, LeanDocumentElement, SchemaDefinitionType, LeanDocument, LeanDocumentOrArray, LeanDocumentOrArrayWithRawType, mquery

Definitions of the following identifiers conflict with those in another file: MongooseDocumentMiddleware, MongooseQueryMiddleware, SchemaPreOptions, SchemaPostOptions, PreMiddlewareFunction, PreSaveMiddlewareFunction, PostMiddlewareFunction, ErrorHandlingMiddlewareFunction

Definitions of the following identifiers conflict with those in another file: MongooseQueryOptions, QueryWithHelpers, Query, QuerySelector, RootQuerySelector, Condition, _FilterQuery, FilterQuery

Definitions of the following identifiers conflict with those in another file: disconnected, connected, connecting, disconnecting, uninitialized, STATES, connection, connections, Connection

Duplicate identifier 'CastError'.