Flutter 3.29 Null check operator used on a null value with CircularProgressIndicator when value is null and year2023 property is true

First, I am confused about the year2023 property in Flutter 3.29. The [official release post](https://medium.com/flutter/whats-new-in-flutter-3-29-f90c380c2317) states that you can use the updated styling by setting year2023 to false. However, when I attempt to set it to false, I receive a warning message stating that 'year2023' is deprecated and shouldn't be used.

![Image](https://github.com/user-attachments/assets/2c53e473-d532-45b0-aaa4-f1f044d2813a)

### Steps to reproduce

when I try to use CircularProgressIndicator with value = null and year2023 = false, I get a null check operator error. 

```dart 

CircularProgressIndicator(value: null,year2023: false),
```







### Expected results

when I try to use CircularProgressIndicator with value = null and year2023 = false it should work like the old style

### Actual results

**A Null check operator crash ! .**




### Code sample

<details open><summary>Code sample</summary>

```dart
CircularProgressIndicator(value: null,year2023: false),
```

</details>


### Screenshots or Video

<details open>
<summary>Screenshots / Video demonstration</summary>

[Upload media here]

</details>


### Logs

<details open><summary>Logs</summary>

```console
I/flutter (18629): Null check operator used on a null value
I/flutter (18629): #0      _CircularProgressIndicatorPainter.paint (package:flutter/src/material/progress_indicator.dart:607)
I/flutter (18629): #1      RenderCustomPaint._paintWithPainter (package:flutter/src/rendering/custom_paint.dart:593)
I/flutter (18629): #2      RenderCustomPaint.paint (package:flutter/src/rendering/custom_paint.dart:641)
I/flutter (18629): #3      RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #4      PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #5      RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #6      RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #7      PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #8      RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:81)
I/flutter (18629): #9      RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #10     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #11     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #12     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #13     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #14     _RenderListTile.paint.doPaint (package:flutter/src/material/list_tile.dart:1655)
I/flutter (18629): #15     _RenderListTile.paint (package:flutter/src/material/list_tile.dart:1659)
I/flutter (18629): #16     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #17     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #18     RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:81)
I/flutter (18629): #19     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #20     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #21     RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:81)
I/flutter (18629): #22     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #23     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #24     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #25     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #26     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #27     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #28     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #29     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #30     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #31     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #32     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #33     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #34     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #35     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #36     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #37     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #38     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #39     RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:81)
I/flutter (18629): #40     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #41     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #42     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #43     RenderDecoratedBox.paint (package:flutter/src/rendering/proxy_box.dart:2343)
I/flutter (18629): #44     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #45     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #46     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #47     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #48     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #49     RenderShiftedBox.paint (package:flutter/src/rendering/shifted_box.dart:81)
I/flutter (18629): #50     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #51     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #52     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #53     PaintingContext.pushClipRect.<anonymous closure> (package:flutter/src/rendering/object.dart:576)
I/flutter (18629): #54     ClipContext._clipAndPaint (package:flutter/src/painting/clip.dart:33)
I/flutter (18629): #55     ClipContext.clipRectAndPaint (package:flutter/src/painting/clip.dart:71)
I/flutter (18629): #56     PaintingContext.pushClipRect (package:flutter/src/rendering/object.dart:576)
I/flutter (18629): #57     RenderClipRect.paint (package:flutter/src/rendering/proxy_box.dart:1576)
I/flutter (18629): #58     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #59     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #60     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #61     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #62     PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:175)
I/flutter (18629): #63     PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:120)
I/flutter (18629): #64     PaintingContext._compositeChild (package:flutter/src/rendering/object.dart:271)
I/flutter (18629): #65     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:252)
I/flutter (18629): #66     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #67     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #68     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #69     RenderSliverMultiBoxAdaptor.paint (package:flutter/src/rendering/sliver_multi_box_adaptor.dart:741)
I/flutter (18629): #70     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #71     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #72     RenderSliverEdgeInsetsPadding.paint (package:flutter/src/rendering/sliver_padding.dart:272)
I/flutter (18629): #73     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #74     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #75     RenderViewportBase._paintContents (package:flutter/src/rendering/viewport.dart:773)
I/flutter (18629): #76     RenderViewportBase.paint (package:flutter/src/rendering/viewport.dart:758)
I/flutter (18629): #77     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #78     PaintingContext._repaintCompositedChild (package:flutter/src/rendering/object.dart:175)
I/flutter (18629): #79     PaintingContext.repaintCompositedChild (package:flutter/src/rendering/object.dart:120)
I/flutter (18629): #80     PaintingContext._compositeChild (package:flutter/src/rendering/object.dart:271)
I/flutter (18629): #81     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:252)
I/flutter (18629): #82     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #83     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #84     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #85     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #86     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #87     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #88     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #89     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #90     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #91     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #92     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #93     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #94     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #95     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #96     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
I/flutter (18629): #97     RenderProxyBoxMixin.paint (package:flutter/src/rendering/proxy_box.dart:140)
I/flutter (18629): #98     RenderObject._paintWithContext (package:flutter/src/rendering/object.dart:3371)
I/flutter (18629): #99     PaintingContext.paintChild (package:flutter/src/rendering/object.dart:260)
```

</details>


### Flutter Doctor output

<details open><summary>Doctor output</summary>

```console
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 3.29.0, on macOS 15.3.1 24D70 darwin-arm64, locale
    fr-XX)
[✓] Android toolchain - develop for Android devices (Android SDK version 35.0.0)
[✓] Xcode - develop for iOS and macOS (Xcode 16.2)
[✓] Chrome - develop for the web
[✓] Android Studio (version 2024.2)
[✓] VS Code (version 1.97.2)
[✓] Connected device (4 available)
[✓] Network resources
```

</details>


Provide feedback

Saved searches

Use saved searches to filter your results more quickly

Uh oh!

Flutter 3.29 Null check operator used on a null value with CircularProgressIndicator when value is null and year2023 property is true #163253

Steps to reproduce

Expected results

Actual results

Code sample

Screenshots or Video

Logs

Flutter Doctor output

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Flutter 3.29 Null check operator used on a null value with CircularProgressIndicator when value is null and year2023 property is true #163253

Description

Steps to reproduce

Expected results

Actual results

Code sample

Screenshots or Video

Logs

Flutter Doctor output

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions