Ionic 3.5.3 - tslint: inaccurate and frequent lint warnings of 'All imports are unused.'


I’ve just updated to Ionic 3.5.3, and I’m noticing a pattern of frequent “All imports are unused” lint warnings --when, in fact the imports are used.

Example warning:

[17:00:26]  tslint: ...example.ts, line: 2
            All imports are unused.

       L1:  import { Injectable } from '@angular/core';
       L2:  import { Http } from '@angular/http';
       L3:  import 'rxjs/add/operator/map';

referring to the following code:

import { Injectable } from '@angular/core';
import { Http } from '@angular/http';
import 'rxjs/add/operator/map';

import { ConstProvider } from '../providers/example';

export class Example{
  public data: any;

  constructor( public http: Http, private constProvider: ConstProvider ) {}

today() {
  if ( {
    return Promise.resolve(;

  return new Promise(resolve => {
    this.http.get(this.constProvider.apiURL + '/example')
      .map(res => res.json())
      .subscribe(data => { = data;

This code works fine. Just get lint warnings on ionic serve, ionic cordova build, ionic upload

global packages:

@ionic/cli-utils : 1.5.0
Cordova CLI      : 7.0.1
Ionic CLI        : 3.5.0

local packages:

@ionic/app-scripts              : 2.0.2
@ionic/cli-plugin-cordova       : 1.4.1
@ionic/cli-plugin-ionic-angular : 1.3.2
Cordova Platforms               : android 6.1.2 browser 4.1.0 ios 4.3.1
Ionic Framework                 : ionic-angular 3.5.3


Node       : v6.11.1
OS         : Windows 10
Xcode      : not installed
ios-deploy : not installed
ios-sim    : not installed
npm        : 3.10.10


There’s an app-scripts issue on Github about this, but it’s never happened to me. So I suspect it is due to an unclean installation that is easy to create if you upgrade from a previous version. I’d suggest you (1) completely delete previous Ionic installation and cache and reinstall, then (2) check the Github issues if that doesn’t solve the problem.


Thanks for the Github pointer and the suggestions. If by “delete previous Ionic installation and cache and reinstall” you mean delete node_modules and npm cache clean and npm install, done, done and done. Rinse and repeat. :smile:

I would welcome any other thoughts or suggestions.

Bogus lint warnings are not critical …just very annoying.


I have the same problem, for now I don’t know a solution either.


As per this thread, simply delete the src/declarations.d.ts file, apparently, it’s not even being created with new Ionic instances. Thread Link


Thank you! Worked like a charm!