Nest can't resolve - nestjs

Question

I'm stating learning about Nestjs and i start a basic "task app", but i start using mongoose on my project and show an error:
> Potential solutions:
- If TaskModel is a provider, is it part of the current AppModule?
- If TaskModel is exported from a separate #Module, is that module imported within AppModule?
#Module({
imports: [ /* the Module containing TaskModel */ ]
})
i try diffrents ways for solving it, but im soo noob on this tool,so is soo frustrating can't found how to solve this error.. pls help a noob on this framework
tasks.service.ts
import { InjectModel } from "#nestjs/mongoose";
import { Injectable } from '#nestjs/common';
import { Task } from './interface/ITasks';
import { Model } from "mongoose";
#Injectable()
export class TasksService {
constructor(#InjectModel('Task') private taskModel: Model<Task>) { }
async getTasks() {
return await this.taskModel.find()
}
async getTask(id: string) {
return await this.taskModel.findById(id)
}
}
task.module.ts
import { TaskSchema } from './schema/task.schema';
import { MongooseModule } from '#nestjs/mongoose';
import { Module } from '#nestjs/common';
import { TasksController } from './tasks.controller';
import { TasksService } from './tasks.service';
#Module({
imports: [MongooseModule.forFeature([
{ name: 'Task', schema: TaskSchema }
], 'Tasks'),
],
controllers: [TasksController],
providers: [TasksService]
})
export class TasksModule { }
task.controller.ts
import { TasksService } from './tasks.service';
import { CreateTaskDto } from './DTO/create-task.dto';
import { Controller, Get, Post, Put, Delete, Body, Param } from '#nestjs/common';
import { Task } from './interface/ITasks';
#Controller('tasks')
export class TasksController {
constructor(private taskService: TasksService) { }
#Get() // Decorador
getTasks(): Promise<Task[]> {
return this.taskService.getTasks()
}
#Get(':id') // Decorador
getTask(#Param('id') id: string) {
return this.taskService.getTask(id)
}
#Post('/newTask')
postTask(#Body() task: CreateTaskDto): { title: string, description: string, done: boolean } {
console.log(task.title, task.description, task.done)
return task
}
#Put(':id')
updateTask(#Body() task: CreateTaskDto, #Param('id') id) {
console.log(task)
console.log(id)
let action = task
return action
}
#Delete(':taskId')
deleteTask(#Param('taskId') taskId): { status: string, id: string } {
let action = { status: "Deleted task", id: taskId }
console.log(action);
return action
}
}
task.schema.ts
import { Schema } from "mongoose";
export const TaskSchema = new Schema({
title: String,
decription: String,
done: Boolean
})

Answer 1

In the future, please show the entire error as it will be more helpful. This partial message is enough for some, but maybe not for everyone.
According to the error, a potential solution would be to add the TaskModel to the AppModule. This leads me to believe you have TasksService in your AppModule's providers array. If that is the case, what is happening is Nest is trying to instantiate two instances of your TasksService, one for the TasksModule and one for the AppModule. You probably didn't mean to do this, and the way to resolve it would be to remove the TasksService from the AppModule's providers array and only have it in the TasksModule's providers array.