Q1. The emulator process for AVD Pixel_2_API_29 was killed

Android Emulator Configuration

Q2. Exception in thread “main” java.io.IOException(Gradle download slow)

AS project default directory: C:\Users\ Zheng Zhong. Gradle

AS custom configuration directory: D:\My Documents. Gradle

Download the gradle.zip package and place it in the appropriate directory

Gradle official address: https://services.gradle.org/distributions/ local gradle catalogue local references.lib file cache address: D: \ My Documents \. Gradle \ caches \ \ modules - 2 files - 2.1 GradlePlugin cache address (i.e. the file com. Android. View the build: gradle: 4.0.0) D: \ My Documents\.gradle\caches\modules-2\files-2.1\com.android.tools.build\gradle Version address: D:\My Documents\.gradle\wrapperCopy the code

Q3. Could not initialize class org. Codehaus. Groovy. Runtime. InvokerHelper (Flutter App launches an error)

Please make changes as per below to resolve this error.
Install Java SDK version: 14 or above.
JDK Download link: https://www.oracle.com/java/technologies/javase-jdk14-downloads.html
In gradle-wrapper.properties please use grade version 6.3 or above.
For e.g:distributionUrl=https\://services.gradle.org/distributions/gradle-6.3-all.zip
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Q4. Could not resolve com. Android. View the build: gradle: 4.0.0. Download gradlePlugin failure in (AS)

Q5. Fix AVD startup failure in Android Studio

ANDROID_SDK_HOME needs to be configured in the environment variable

Q6. Aliyun domestic mirror configuration

Ali cloud domestic mirror / / / / buildscript {/ / repositories {/ / maven {url 'https://maven.aliyun.com/repository/public'} / / maven {url  'https://maven.aliyun.com/repository/google' } // maven { url 'https://maven.aliyun.com/repository/gradle-plugin' } // Google () / / jcenter () / /} / / dependencies {/ / classpath "com. Android. View the build: gradle: 4.0.0" / / / / / / NOTE: Do not place your application dependencies here; they belong // // in the individual module build.gradle files // } //} // //allprojects { // repositories { // maven { url 'https://maven.aliyun.com/repository/public' } // maven { url 'https://maven.aliyun.com/repository/google' } // maven { url 'https://maven.aliyun.com/repository/gradle-plugin' } // google() // jcenter() // } //}Copy the code

Q7. Start flutter project times Could not find com. Android. View the build: gradle: 4.0.0.

Reason 1: The reason for not being able to access Google resources is generally because there is no way to access Google resources in China (except for those with external networks and walls, etc.). At this time, the solution is to use the mirror image of Ali. Edit the build.gradle file in the Android directory of the project and remove the Google () and jcenter() lines. And add ali's link below (note: There are two changes) maven {url 'https://maven.aliyun.com/repository/google'} maven {url 'https://maven.aliyun.com/repository/jcenter'} maven {url 'http://maven.aliyun.com/nexus/content/groups/public'} the second step: D:\Program Files\ flutter \flutter_sdk\packages\flutter_tools\gradle\flutter. Gradle Whether people really set from the agent to confirm project directory android/gradle properties to view the files found no proxy Settings Confirm to open the global configuration file, Windows in personal documents directory, In Mac / * nix user directory. Gradle/gradle. Open the properties foundCopy the code

The q8.NDK version does not match

No version of NDK matched the requested version 21.0.6113669. Versions available locally: 21.3.6528147

Q9. There is no ios class in the Flutter project, so it cannot be coded?

Switch to the IOS directory under the Fultter project and use the pod install command to generate the relevant files