HERE Flutter SDK Issue - Method not found

I develop on the flutter framework, when I install the here sdk and make the necessary settings.

I run the example program the following error is displayed on the debugging console, would you have a solution to this problem?

plugins/here_sdk/lib/src/builtin_types__conversion.dart:82:23: Error: Method not found: 'Utf8.toUtf8'.    final cValue = Utf8.toUtf8(value);                        ^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:84:3: Error: Method not found: 'free'.    free(cValue);    ^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:88:53: Error: Method not found: 'Utf8.fromUtf8'.  String String_fromFfi(Pointer<Void> handle) => Utf8.fromUtf8(_String_get_value(handle));                                                      ^^^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:120:30: Error: Method not found: 'Utf8.toUtf8'.    final cLanguageCode = Utf8.toUtf8(locale.languageCode);                               ^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:122:39: Error: Method not found: 'Utf8.toUtf8'.      locale.countryCode != null ? Utf8.toUtf8(locale.countryCode) : Pointer<Utf8>.fromAddress(0);                                        ^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:124:38: Error: Method not found: 'Utf8.toUtf8'.      locale.scriptCode != null ? Utf8.toUtf8(locale.scriptCode) : Pointer<Utf8>.fromAddress(0);                                       ^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:125:29: Error: Method not found: 'Utf8.toUtf8'.    final cLanguageTag = Utf8.toUtf8(locale.toLanguageTag());                              ^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:129:3: Error: Method not found: 'free'.    free(cLanguageCode);    ^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:130:34: Error: Method not found: 'free'.    if (cCountryCode.address != 0) free(cCountryCode);                                   ^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:131:33: Error: Method not found: 'free'.    if (cScriptCode.address != 0) free(cScriptCode);                                  ^^^^  lugins/here_sdk/lib/src/builtin_types__conversion.dart:132:3: Error: Method not found: 'free'.    free(cLanguageTag);    ^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:141:30: Error: Method not found: 'Utf8.fromUtf8'.      return Locale.parse(Utf8.fromUtf8(languageTagCstring));                               ^^^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:149:59: Error: Method not found: 'Utf8.fromUtf8'.      languageCode: languageCodeCstring.address != 0 ? Utf8.fromUtf8(languageCodeCstring) : null,                                                            ^^^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:150:57: Error: Method not found: 'Utf8.fromUtf8'.      countryCode: countryCodeCstring.address != 0 ? Utf8.fromUtf8(countryCodeCstring) : null,                                                          ^^^^^^^^  plugins/here_sdk/lib/src/builtin_types__conversion.dart:151:55: Error: Method not found: 'Utf8.fromUtf8'.      scriptCode: scriptCodeCstring.address != 0 ? Utf8.fromUtf8(scriptCodeCstring) : null                                                        ^^^^^^^^    FAILURE: Build failed with an exception.    * Where:  Script 'C:\Users\Nathan\Documents\Dev\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 991    * What went wrong:  Execution failed for task ':app:compileFlutterBuildDebug'.  > Process 'command 'C:\Users\Nathan\Documents\Dev\flutter\bin\flutter.bat'' finished with non-zero exit value 1    * Try:  Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.    * Get more help at https://help.gradle.org    BUILD FAILED in 30s  Exception: Gradle task assembleDebug failed with exit code 1  Exited (sigterm)  

https://stackoverflow.com/questions/66831101/here-flutter-sdk-issue-method-not-found March 27, 2021 at 07:59PM