This application cannot tree shake icons fonts

Question

While trying to build my app in release mode I encountered the following the compiler error:
"This application cannot tree shake icons fonts."

terminal logs:

flutter build ios --release  
Building com.xxx.xxx for device (ios-release)...
Automatically signing iOS for device deployment using specified development team in Xcode project: C7T4CHU88Y
Running Xcode build...                                                  
                                                   
Xcode build done.                                           31.8s
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **


Xcode's output:
↳
    This application cannot tree shake icons fonts. It has non-constant instances of IconData at the following locations:
      - file:///Users/user-app/lib/screens/categories/subcategories.dart:830:35
      - file:///Users/user-app/lib/screens/home/home.dart:387:17
      - file:///Users/user-app/lib/screens/home/home.dart:399:17
      - file:///Users/user-app/lib/screens/home/home.dart:411:17
      - file:///Users/user-app/lib/screens/home/home.dart:423:17
      - file:///Users/user-app/lib/screens/product/all_products.dart:516:31
      - file:///Users/user-app/lib/screens/tab/saveditems.dart:324:31
      - file:///Users/user-app/lib/screens/tab/searchitem.dart:496:31

The error could result from the following file:

Column(
  children: <Widget>[
    Row(
      children: <Widget>[
        new Text(
          MyLocalizations.of(context).goToCart,
          style: textBarlowRegularBlack(),
        ),
        SizedBox(width: 4),
        Icon(
          IconData(
            0xe911,
            fontFamily: 'icomoon',
          ),
          color: Colors.black,
        ),
      ],
    ),
  ],
),

this solve my problem [enter link description here](https://stackoverflow.com/a/76375385/13377344) — aqibGenk, Jun 05 '23 at 08:47

score 67 · Answer 1 · answered Aug 14 '20 at 12:09

67

Try build with --no-tree-shake-icons command.

answered Aug 14 '20 at 12:09

Anson

905
6
11

2

Can someone tell me where I can set this in Xcode please? Thanks. – Nick Wright Sep 02 '20 at 09:06
for further explanation about this please refer to https://github.com/Ahmadre/FlutterIconPicker/issues/9#issuecomment-664844488 – U.Savas Sep 20 '20 at 06:54
@NickWright flutter build ios --no-tree-shake-icons in terminal – Shalabyer Feb 16 '21 at 18:19
@anson when I do this, none of the material icons I have used show up - do you know why this could be? – ajnabz Mar 02 '21 at 15:49
added this one in Codemagic build arguments and works. :D – MJ Montes Mar 16 '21 at 11:22

score 14 · Answer 2 · edited Oct 25 '21 at 11:13

14

Add a "const" before the IconData.

Icon(
  const IconData(
    0xe911,
    fontFamily: 'icomoon',
  ),
  color: Colors.black,
),

edited Oct 25 '21 at 11:13

nocego

15
1
4

answered Aug 10 '20 at 07:32

Thepeanut

3,074
1
17
23

1

What about when using Icon.myicon? – samuelnehool Mar 03 '23 at 18:37

Anand · Answer 3 · 2023-04-24T04:34:14.637

4

For run

flutter run --release --no-tree-shake-icons

For Android build

flutter build apk --release --no-tree-shake-icons

For iOS build

flutter build ipa --release --no-tree-shake-icons

edited Apr 24 '23 at 04:34

answered Oct 06 '22 at 07:24

Anand

4,355
2
35
45

Is it possible to add those extra arguments permanently somewhere instead of manually running these ? – Mark Anderson Feb 01 '23 at 09:04

score 2 · Answer 4 · answered Jun 10 '21 at 14:14

2

For flutter you can export apk with this

flutter build apk --split-per-abi --no-tree-shake-icons

answered Jun 10 '21 at 14:14

gtr Developer

2,369
16
12

score -2 · Answer 5 · answered Aug 11 '20 at 07:15

-2

For me also facing same issue in latest version of flutter. So as of now I've downgraded to Channel stable v1.17.5 to skip this tree-shake-icons issue.

answered Aug 11 '20 at 07:15

Sakthi vel

9
3

This application cannot tree shake icons fonts

5 Answers5

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