怎么修？错误:未定义命名参数“子”。(undefined_named_parameter at [application_1] )

Question

不好意思，在我解释这是使用这从图中转换的结果之前，我下载后，其中一个代码出现了错误

在那之前，我用

Flutter (频道稳定，2.10.3，在Microsoft Windows版本10.0.22572.201上，locale en-US) Android工具链-为Android设备开发(Android SDK版本32.1.0-rc1)

import 'controller/splashscreen_controller.dart';
import 'package:application_1/core/app_export.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';

class SplashscreenScreen extends GetWidget<SplashscreenController> {
  @override
  Widget builder(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        backgroundColor: ColorConstant.whiteA700,
        body: Container(
          width: size.width,
          child: SingleChildScrollView(
            child: Container(
              width: size.width,
              decoration: BoxDecoration(
                color: ColorConstant.whiteA700,
              ),
              child: Padding(
                padding: EdgeInsets.only(
                  left: getHorizontalSize(
                    11.56,
                  ),
                ),
                child: Text(
                  "lbl_skylink".tr,
                  overflow: TextOverflow.ellipsis,
                  textAlign: TextAlign.left,
                  style: AppStyle.textStylePoppinsmedium34.copyWith(
                    fontSize: getFontSize(
                      34,
                    ),
                  ),
                  child: Padding(
                    padding: EdgeInsets.only(
                      top: getVerticalSize(
                        7.22,
                      ),
                      bottom: getVerticalSize(
                        5.78,
                      ),
                    ),
                    child: Container(
                      height: getVerticalSize(
                        39.00,
                      ),
                      width: getHorizontalSize(
                        43.33,
                      ),
                      child: SvgPicture.asset(
                        ImageConstant.imgVector5,
                        fit: BoxFit.fill,
                        child: Padding(
                          padding: EdgeInsets.only(
                            top: getVerticalSize(
                              187.00,
                            ),
                            bottom: getVerticalSize(
                              0.01,
                            ),
                          ),
                          child: Container(
                            height: getVerticalSize(
                              192.99,
                            ),
                            width: getHorizontalSize(
                              375.00,
                            ),
                            child: SvgPicture.asset(
                              ImageConstant.imgBackgroundillu,
                              fit: BoxFit.fill,
                            ),
                          ),
                        ),
                      ),
                    ),
                  ),
                ),
              ),
            ),
          ),
        ),
      ),
    );
  }
}

对于我在build.gradle上使用的构建版本

buildscript {
    ext.kotlin_version = '1.4.32'
    repositories {
        google()
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:4.0.1'
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
    }
}

Answer 1

当您尝试将子参数定义为没有“子”参数的小部件时，会显示错误消息，在本例中是SvgPicture.asset。

但是，在您的例子中，主要的问题是(您下载的代码)似乎已经损坏了。它似乎有几个谬误。

主要的小部件是错误嵌套的，并且还将子参数定义为没有“子”参数的小部件。

下面是一个代码，我以为你的代码是注定的。试试看它是否有效。

import 'controller/splashscreen_controller.dart';
import 'package:application_1/core/app_export.dart';
import 'package:flutter/material.dart';
import 'package:flutter_svg/flutter_svg.dart';

class SplashscreenScreen extends GetWidget<SplashscreenController> {
  @override
  Widget builder(BuildContext context) {
    return SafeArea(
      child: Scaffold(
        backgroundColor: ColorConstant.whiteA700,
        body: Container(
          width: size.width,
          child: SingleChildScrollView(
            child: Container(
              width: size.width,
              decoration: BoxDecoration(
                color: ColorConstant.whiteA700,
              ),
              child: Column(
                children: [
                  Padding(
                    padding: EdgeInsets.only(
                      left: getHorizontalSize(
                        11.56,
                      ),
                    ),
                    child: Text(
                      "lbl_skylink".tr,
                      overflow: TextOverflow.ellipsis,
                      textAlign: TextAlign.left,
                      style: AppStyle.textStylePoppinsmedium34.copyWith(
                        fontSize: getFontSize(
                          34,
                        ),
                      ),
                    ),
                  ),
                  Padding(
                    padding: EdgeInsets.only(
                      top: getVerticalSize(
                        7.22,
                      ),
                      bottom: getVerticalSize(
                        5.78,
                      ),
                    ),
                    child: Container(
                      height: getVerticalSize(
                        39.00,
                      ),
                      width: getHorizontalSize(
                        43.33,
                      ),
                      child: SvgPicture.asset(
                        ImageConstant.imgVector5,
                        fit: BoxFit.fill,
                      ),
                    ),
                  ),
                  Padding(
                    padding: EdgeInsets.only(
                      top: getVerticalSize(
                        187.00,
                      ),
                      bottom: getVerticalSize(
                        0.01,
                      ),
                    ),
                    child: Container(
                      height: getVerticalSize(
                        192.99,
                      ),
                      width: getHorizontalSize(
                        375.00,
                      ),
                      child: SvgPicture.asset(
                        ImageConstant.imgBackgroundillu,
                        fit: BoxFit.fill,
                      ),
                    ),
                  ),
                ],
              ),
            ),
          ),
        ),
      ),
    );
  }
}