Flutter could not download kotlin-compiler-embeddedable-1.5.21.jar (org.jetbrains.kotlin:kotlin-comp-CodePudding

I'm creating an Flutter application.

Now I want to add Flutter OSM to project for working with maps. But after adding flutter_osm_plugin to pubspec.yaml I'm getting an error:

[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...

FAILURE: Build failed with an exception.

* What went wrong:
A problem occurred configuring project ':flutter_osm_plugin'.
> Could not resolve all artifacts for configuration ':flutter_osm_plugin:classpath'.
   > Could not download kotlin-compiler-embeddable-1.5.21.jar (org.jetbrains.kotlin:kotlin-compiler-embeddable:1.5.21)
      > Could not get resource 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-compiler-embeddable/1.5.21/kotlin-compiler-embeddable-1.5.21.jar'.
         > Could not GET 'https://repo.maven.apache.org/maven2/org/jetbrains/kotlin/kotlin-compiler-embeddable/1.5.21/kotlin-compiler-embeddable-1.5.21.jar'.
            > Connect to fodev.org:8118 [fodev.org/45.129.39.130] failed: Connection refused: connect
> Failed to notify project evaluation listener.
   > Could not find method implementation() for arguments [project ':flutter_plugin_android_lifecycle'] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.
   > Could not find method implementation() for arguments [project ':location'] on object of type org.gradle.api.internal.artifacts.dsl.dependencies.DefaultDependencyHandler.

* 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 19s
Running Gradle task 'assembleDebug'...                             23,6s
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception: Gradle task assembleDebug failed with exit code 1

kotlin-compiler-embeddable-1.5.21.jar downloading from browser. But I can't install this from Android Studio. I haven't an Antivirus.

What's problem? Thanks a lot.

CodePudding user response：

It sounds like you're probably building your Flutter app using Android Studio (vs. VSCode, or the Flutter CLI). Please try the suggestions in this thread: Could not download kotlin-compiler-embeddable.jar

Ensure you're not in offline mode:
- Open the Preferences window by clicking File > Settings (on Mac, Android Studio > Preferences).
- In the left pane, click Build, Execution, Deployment > Gradle. Check the Offline work checkbox off.
- Click Apply or OK.
Update the library version:
- Click Dependencies > Find and Click org.jetbrains.kotlin:kotlin-stdlib-jdk7:1.3.21 (or whatever your current version is)
- Under Details > update section, click [update variable] > [update dependencies]

Please confirm your build environment (A/S?); please let us know if you resolved the problem.

CodePudding user response：

Thanks a lot. I'v resolved the problem.

I changed a kotlin compiler version and choosed 'No Proxy' in HTTP Settings.