오류내용

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Warning
──────────────────────────────────────────────────────────────────────────────
Your Flutter application is created using an older version of the Android
embedding. It is being deprecated in favor of Android embedding v2. Follow the
steps at
https://flutter.dev/go/android-project-migration
to migrate your project. You may also pass the --ignore-deprecation flag to
ignore this check and continue with the deprecated v1 embedding. However,
the v1 Android embedding will be removed in future versions of Flutter.
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The detected reason was:
  ~\android\app\src\main\AndroidManifest.xml uses `android:name="io.flutter.app.FutterApplication"`
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Build failed due to use of deprecated Android v1 embedding.
Exited (1)

android\app\src\main\AndroidManifest.xml 파일에서 android:name 값을 변경

변경 전 

    <application
        android:name="io.flutter.app.FlutterApplication"
        android:label="httpexample"
        android:icon="@mipmap/ic_launcher">
        <activity

변경 후

    <application
        android:name="${applicationName}"
        android:label="httpexample"
        android:icon="@mipmap/ic_launcher">
        <activity

오류내용

* What went wrong:
Execution failed for task ':app:compileDebugKotlin'.
> Compilation error. See log for more details

* 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 9s
┌─ Flutter Fix ────────────────────────────────────────────────────────────────────────────────────┐
│ [!] Your project requires a newer version of the Kotlin Gradle plugin.                           │
│ Find the latest version on https://kotlinlang.org/docs/gradle.html#plugin-and-versions, then     │
│ update                                                                                           │
│ ~\android\build.gradle:                                                                          │
│ ext.kotlin_version = '<latest-version>'                                                          │
└──────────────────────────────────────────────────────────────────────────────────────────────────┘
Exception: Gradle task assembleDebug failed with exit code 1

android\build.gradle 파일에서 ext.kotlin_version 값을 변경

변경 전

buildscript {
    ext.kotlin_version = '1.3.50'
    repositories {
        google()
        jcenter()
    }

변경 후

buildscript {
    ext.kotlin_version = '1.6.10'
    repositories {
        google()
        jcenter()
    }

오류내용

FAILURE: Build failed with an exception.

* Where:
Build file '~\android\app\build.gradle' line: 25

* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [id 'kotlin-android']
   > The current Gradle version 5.6.2 is not compatible with the Kotlin Gradle plugin. Please use Gradle 6.1.1 or newer, or the previous version of the Kotlin plugin.

* 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 15s
Exception: Gradle task assembleDebug failed with exit code 1

android\gradle\wrapper\gradle-wrapper.properties 파일에서 distributionUrl 값을 변경

변경 전

distributionUrl=https\://services.gradle.org/distributions/gradle-5.6.2-all.zip

변경 후

distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip

오류내용

Warning: The plugin path_provider requires Android SDK version 29.
One or more plugins require a higher Android SDK version.
Fix this issue by adding the following to ~\android\app\build.gradle:
android {
  compileSdkVersion 29
  ...
}

android\app\build.gradle 파일에서 compileSdkVersion 값을 변경

변경 전

android {
    compileSdkVersion 28

변경 후 (에러에서 알려주는 버전으로 값 변경)

android {
    compileSdkVersion 29

오류내용

════════ Exception caught by image resource service ════════════════════════════
Failed to load network image.
Image URL: https://~~~~
Trying to load an image from another domain? Find answers at:
https://flutter.dev/docs/development/platform-integration/web-images
════════════════════════════════════════════════════════════════════════════════

해결방법

1. VSCode의 설정(Ctrl + ,)
2. Flutter Web Render 옵션
3. auto -> html