Build failed: Swift Compiler Error (Flutter 1.12) about speech_to_text

[mustakimpawle]

Same issue. Did you find the solution?

[sowens-csd]

Sorry for the delay. I'll try a new project myself. In the meantime I'd suggest opening the project in Xcode and set the Swift version there.

[mdvandergon]

Hey, thank you for looking into it. No solution yet. I have been setting the Swift version in Xcode, but it looks like I get the same issue. I might have some more time to investigate this week.

[sowens-csd]

I have Flutter 1.12.13+Hotfix.8

Here's what I tried:

1. flutter create --org com.csdcorp --ios-language swift --android-language kotlin .
2. build and launch the resulting project for iOS, all working
3. add speech_to_text: ^1.1.0 to pubspec.yaml dependencies
4. rebuild and launch, all working
5. add speech to text to main.dart and initialize it
6. add required permission descriptions to Info.plist
7. rebuild and launch, all working, speech recognition functional

So there doesn't appear to be a compile problem with the plugin and the latest version of Flutter. Can you tell me if I've done something differently than you're doing? Here's the full source of main.dart in case it's of help. I made only the minimal changes required to the example program to add a simple speech usage to it.

import 'package:flutter/material.dart';
import 'package:speech_to_text/speech_recognition_result.dart';
import 'package:speech_to_text/speech_to_text.dart';

void main() => runApp(MyApp());

class MyApp extends StatelessWidget {
  // This widget is the root of your application.
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(title: 'Flutter Demo Home Page'),
    );
  }
}

class MyHomePage extends StatefulWidget {
  MyHomePage({Key key, this.title}) : super(key: key);
  final String title;

  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  SpeechToText _speechToText;
  bool _speechReady = false;
  String _wordsSpoken = "";
  int _counter = 0;

  @override
  void initState() {
    super.initState();
    _startSpeech();
  }

  Future<void> _startSpeech() async {
    _speechToText = SpeechToText();
    _speechReady = await _speechToText.initialize();
    if (_speechReady) {
      _speechToText.listen(onResult: _resultHandler, partialResults: true);
    }
    setState(() {});
  }

  void _resultHandler(SpeechRecognitionResult result) {
    setState(() {
      _wordsSpoken = result.recognizedWords;
    });
  }

  void _incrementCounter() {
    setState(() {
      _counter++;
    });
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text(widget.title),
      ),
      body: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(_speechReady ? 'Speech is now ready' : 'Speech not ready yet'),
            Text(_wordsSpoken),
            Text(
              'You have pushed the button this many times:',
            ),
            Text(
              '$_counter',
              style: Theme.of(context).textTheme.display1,
            ),
          ],
        ),
      ),
      floatingActionButton: FloatingActionButton(
        onPressed: _incrementCounter,
        tooltip: 'Increment',
        child: Icon(Icons.add),
      ),
    );
  }
}

[mdvandergon]

Hi there, sorry for the delay and thank you for sharing the example. I can confirm that there is no compile issue anymore with the latest package. I took these steps, in addition to:

1. updating to the latest version speech_to_text: '>=2.0.1',
2. updating to the latest version of xcode 11.4 (possibly unrelated to this working)
3. running pod disintegrate and then pod install in my project(s).

Thanks for your help!