Flutter-Android编译报错与解决方案汇总

报错一:java.lang.NullPointerException: Cannot invoke "String.length()" because "" is null

解决方案:

I solved this problem by upgrading Android Gradle Plugin to version 8.3.1.

You can use Tools->AGP Upgrade Assistant to upgrade Android Gradle plugin.

报错二:Namespace not specified. Specify a namespace in the module's build file.

解决方案:

allprojects {

repositories {

google()

mavenCentral()

}

// This code is where all the magic happens and fixes the error.

subprojects {

afterEvaluate { project ->

if (project.hasProperty('android')) {

project.android {

if (namespace == null) {

namespace project.group

}

}

}

}

}

// This code is where all the magic happens and fixes the error.

}

报错三:Class 'kotlin.Suppress' was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.9.0, expected version is 1.7.1.

解决方案:

https://stackoverflow.com/questions/67699823/module-was-compiled-with-an-incompatible-version-of-kotlin-the-binary-version-o

The expected version is the Kotlin for kotlin-gradle-plugin

The binary version is what is downloaded (or previously compiled) for com.android.tools.build:gradle

buildscript {

ext.kotlin_version = '1.5.20' // <= expected version is 1.5.1

}

dependencies {

classpath 'com.android.tools.build:gradle:7.3.1' // downloads 1.7.1 Metadata

classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version" // <= 1.5.20 used here

}

KGP、Gradle、AGP版本对应表:https://kotlinlang.org/docs/gradle-configure-project.html#apply-the-plugin

通过差对应表,将主工程下的KGP版本升级即可。

From

ext.kotlin_version = '1.7.10'

to

ext.kotlin_version = '2.0.0'

相关推荐
提子拌饭13318 分钟前
风息时钟:鸿蒙Flutter 实现的自然风格时钟应用
flutter·华为·架构·开源·harmonyos
浮芷.3 小时前
Flutter 框架跨平台鸿蒙开发 - AR动物互动应用
flutter·ar·harmonyos
SharpCJ3 小时前
Android 开发者为什么必须掌握 AI 能力?端侧视角下的技术变革
android·ai·aigc
_李小白4 小时前
【OSG学习笔记】Day 38: TextureVisitor(纹理访问器)
android·笔记·学习
JJay.4 小时前
Kotlin 高阶函数学习指南
android·开发语言·kotlin
jinanwuhuaguo4 小时前
截止到4月8日,OpenClaw 2026年4月更新深度解读剖析:从“能力回归”到“信任内建”的范式跃迁
android·开发语言·人工智能·深度学习·kotlin
加农炮手Jinx5 小时前
Flutter 组件 conventional 适配鸿蒙 HarmonyOS 实战:约定式提交标准,构建自动化版本治理与 CI/CD 质量治理架构
flutter·harmonyos·鸿蒙·openharmony
王码码20355 小时前
Flutter 三方库 appstream 的鸿蒙化适配指南 - 驾驭 Linux 生态元数据规范,打造高性能、标准化、国际化的 OpenHarmony 桌面应用商店分发基石
flutter·harmonyos·鸿蒙·openharmony
见山是山-见水是水5 小时前
Flutter 框架跨平台鸿蒙开发 - AR植物养护助手
flutter·华为·ar·harmonyos
JJay.5 小时前
Android Kotlin 协程使用指南
android·开发语言·kotlin