Flutter Onesignal Could not resolve com.google.firebase:firebase-messaging

Flutter Onesignal Could not resolve com.google.firebase:firebase-messaging - android

I'm trying to run my flutter application after added onesignal_flutter: ^3.2.8 on my pubspec.yaml. I got this error:
Running Gradle task 'assembleDebug'...
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:checkDebugAarMetadata'.
Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
Could not resolve com.google.firebase:firebase-messaging:{require [19.0.0, 22.0.99]; prefer 22.0.0}.
Required by:
project :app > project :onesignal_flutter > com.onesignal:OneSignal:4.6.6
> Failed to list versions for com.google.firebase:firebase-messaging.
> Unable to load Maven meta-data from https://google.bintray.com/exoplayer/com/google/firebase/firebase-messaging/maven-metadata.xml.
> Could not get resource 'https://google.bintray.com/exoplayer/com/google/firebase/firebase-messaging/maven-metadata.xml'.
> Could not GET 'https://google.bintray.com/exoplayer/com/google/firebase/firebase-messaging/maven-metadata.xml'. Received status code 502 from server: Bad Gateway
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 2m 47s
[!] Gradle threw an error while downloading artifacts from the network. Retrying to download...
Exception: Gradle task assembleDebug failed with exit code 1```

Add the following lines to your android/app/build.gradle
buildscript {
repositories {
// ...
mavenCentral()
}
dependencies {
// ...
// OneSignal-Gradle-Plugin
classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:[0.12.10, 0.99.99]'
}
}
apply plugin: 'com.onesignal.androidsdk.onesignal-gradle-plugin'
You can also refer to One Signal documentation for more info.

Related

unable to get metadata from jcenter

Error getting while creating release build in react native
FAILURE: Build failed with an exception.
* What went wrong:
Could not determine the dependencies of task ':react-native-community_clipboard:verifyReleaseResources'.
> Could not resolve all task dependencies for configuration ':react-native-community_clipboard:releaseRuntimeClasspath'.
> Could not resolve com.facebook.react:react-native:+.
Required by:
project :react-native-community_clipboard
> Failed to list versions for com.facebook.react:react-native.
> Unable to load Maven meta-data from https://jcenter.bintray.com/com/facebook/react/react-native/maven-metadata.xml.
> Could not GET 'https://jcenter.bintray.com/com/facebook/react/react-native/maven-metadata.xml'.
> Read timed out
* 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.
Error found during release build in react native

Currently jcenter down
Solution
try replace jCenter() to mavenCentral() to your project gradle
repositories {
google()
mavenCentral()
}

As from here, replace jcenter() with mavenCentral() in your android/app/build.gradle.

Actually, based on the posted issue on Github a temporary solution could be like the following on the android/build.gradle file:
all { ArtifactRepository repo ->
if(repo instanceof MavenArtifactRepository){
def url = repo.url.toString()
if (url.startsWith('https://jcenter.bintray.com/')) {
remove repo
}
}
}
In my case, it was happing in one of node_modules's package and I used patch-package to keep the solution in the production.

Build failed when adding Neumorphism dependency in Android

I am trying to add Neumorphism and DayNightSwitch dependency in Android but the build failed every time.
I tried many times but I didn’t figured out what's the problem is.
The gradle plugin is 7.2 and the Gradle version is 7.0.1
Neumorphism dependency
dependencies {
implementation 'com.github.fornewid:neumorphism:{latest_version}'
}
DayNightSwitch dependency
dependencies {
implementation 'com.github.Mahfa:DayNightSwitch:1.4'
}
8: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:mergeDebugNativeLibs'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find com.github.fornewid:neumorphism:0.3.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/com/github/fornewid/neumorphism/0.3.0/neumorphism-0.3.0.pom
- https://repo.maven.apache.org/maven2/com/github/fornewid/neumorphism/0.3.0/neumorphism-0.3.0.pom
Required by:
project :app
* 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.

Please try to specify a version for the dependency
implementation 'com.github.fornewid:neumorphism:0.3.0'

Please add Neumorphism dependecy in your app level build.gradle as below,:
implementation 'com.github.fornewid:neumorphism:0.3.0'
And add these lines inside dependencyResolutionManagement to your Settings.gradle:
repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
repositories {
google()
mavenCentral()
maven { url "https://jitpack.io" }
jcenter() // Warning: this repository is going to shut down soon
}

Android build gradle fail

i've been working on a app for a while, and took a few days off, now i'm trying to run it and i'm getting these 7 failures... I tried to check compile history and theirs no changes. So i'm confused as to why its not working all of the sudden. This is probably a pretty easy problem to fix, but i know really nothing about android development..
FAILURE: Build completed with 7 failures.
1: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:checkDebugAarMetadata'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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.
==============================================================================
2: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:mergeDebugResources'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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.
==============================================================================
3: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:processDebugMainManifest'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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.
==============================================================================
4: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:mergeDebugAssets'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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.
==============================================================================
5: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:checkDebugDuplicateClasses'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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.
==============================================================================
6: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:desugarDebugFileDependencies'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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.
==============================================================================
7: Task failed with an exception.
-----------
* What went wrong:
Execution failed for task ':app:mergeDebugNativeLibs'.
> Could not resolve all files for configuration ':app:debugRuntimeClasspath'.
> Could not find android.arch.lifecycle:extensions:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/extensions/2.1.0/extensions-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
> Could not find android.arch.lifecycle:runtime:2.1.0.
Searched in the following locations:
- https://dl.google.com/dl/android/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://repo.maven.apache.org/maven2/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://jcenter.bintray.com/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
- https://cardinalcommerceprod.jfrog.io/artifactory/android/android/arch/lifecycle/runtime/2.1.0/runtime-2.1.0.pom
Required by:
project :app > com.paypal.checkout:android-sdk:0.2.0
* 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
Deprecated Gradle features were used in this build, making it incompatible with Gradle 8.0.
Use '--warning-mode all' to show the individual deprecation warnings.
See https://docs.gradle.org/7.0.2/userguide/command_line_interface.html#sec:command_line_warnings
BUILD FAILED in 1s
build.gradle (:app)
plugins {
id 'com.android.application'
id 'kotlin-android'
id 'kotlin-android-extensions'
}
android {
compileSdkVersion 30
buildToolsVersion "30.0.3"
defaultConfig {
applicationId "###########"
minSdkVersion 23
targetSdkVersion 30
versionCode 1
versionName "1.0"
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
jvmTarget = '1.8'
}
}
dependencies {
implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
implementation 'androidx.core:core-ktx:1.6.0'
implementation 'androidx.appcompat:appcompat:1.3.1'
implementation 'com.google.android.material:material:1.4.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.3'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
implementation("com.android.volley:volley:1.2.0")
implementation 'com.google.code.gson:gson:2.8.7'
implementation 'com.google.android.gms:play-services-location:18.0.0'
implementation 'com.google.android.material:material:1.5.0-alpha01'
implementation('com.paypal.checkout:android-sdk:0.2.0')
}
build.gradle (appname)
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = "1.5.21"
repositories {
google()
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:7.0.0'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
mavenCentral()
jcenter() // Warning: this repository is going to shut down soon
// This private repository is required to resolve the Cardinal SDK transitive dependency.
maven {
url "https://cardinalcommerceprod.jfrog.io/artifactory/android"
credentials {
// Be sure to add these non-sensitive credentials in order to retrieve dependencies from
// the private repository.
username 'paypal_sgerritz'
password 'AKCp8jQ8tAahqpT5JjZ4FRP2mW7GMoFZ674kGqHmupTesKeAY2G8NcmPKLuTxTGkKjDLRzDUQ'
}
}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}

File -> Invalidate Cache & Restart

You can also try to copy and paste your code to a new android studio project but if nothing's changed it's probably android studio being android studio. Maybe try not using the emulator and running the app on your phone as well.

The problem is in this line. ````Could not find android.arch.lifecycle:extensions:2.1.0.`````
As you can see it is saying that could not find Android.arch.lifecycle. The problem is with your Gradle. Try running a new empty project and if it works, the problem is with your build.gradle file. You might have written a wrong line or configured it in the wrong way.

Most of the times those errors can be fixed by cleaning and rebuilding the project. So give it a try, Go to Build>Clean project. Then go to Build > Rebuild Project. There was a case a month ago where i had to delete the jcenter() repository for the problem to be fixed. Another thing that you should probably check is a possible android studio update. Last but not least check your dependencies for an version mismatch.

Flutter: "Could not resolve all artifacts for configuration ':classpath'"

I am trying to run a default flutter app but when I run it gives the below error:
Running Gradle task 'assembleDebug'...
FAILURE: Build failed with an exception.
* What went wrong:
A problem occurred configuring root project 'android'.
> Could not resolve all artifacts for configuration ':classpath'.
> Could not resolve com.android.tools.build:gradle:3.5.3.
Required by:
project :
> Could not resolve com.android.tools.build:gradle:3.5.3.
> Could not get resource 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.5.3/gradle-3.5.3.pom'.
> Could not GET 'https://dl.google.com/dl/android/maven2/com/android/tools/build/gradle/3.5.3/gradle-3.5.3.pom'.
> Connect to 172.30.0.15:3128 [/172.30.0.15] failed: Connection timed out: connect
> Could not resolve com.android.tools.build:gradle:3.5.3.
> Could not get resource 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.5.3/gradle-3.5.3.pom'.
> Could not GET 'https://jcenter.bintray.com/com/android/tools/build/gradle/3.5.3/gradle-3.5.3.pom'.
> Connect to 172.30.0.15:3128 [/172.30.0.15] failed: Connection timed out: connect
> Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.50.
Required by:
project :
> Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.50.
> Could not get resource 'https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.50/kotlin-gradle-plugin-1.3.50.pom'.
> Could not GET 'https://dl.google.com/dl/android/maven2/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.50/kotlin-gradle-plugin-1.3.50.pom'.
> Connect to 172.30.0.15:3128 [/172.30.0.15] failed: Connection timed out: connect
> Could not resolve org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.50.
> Could not get resource 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.50/kotlin-gradle-plugin-1.3.50.pom'.
> Could not GET 'https://jcenter.bintray.com/org/jetbrains/kotlin/kotlin-gradle-plugin/1.3.50/kotlin-gradle-plugin-1.3.50.pom'.
> Connect to 172.30.0.15:3128 [/172.30.0.15] failed: Connection timed out: connect
* 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 2m 25s
Exception: Gradle task assembleDebug failed with exit code 1
below is the build.gradle code:
buildscript {
ext.kotlin_version = '1.3.50'
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.3'
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"
}
}
allprojects {
repositories {
google()
jcenter()
}
}
rootProject.buildDir = '../build'
subprojects {
project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
project.evaluationDependsOn(':app')
}
task clean(type: Delete) {
delete rootProject.buildDir
}
The whole code of the app is default one, no changes have been done I have just connected an emulator and tried to run if it works and am stuuck at this assembleDebug error.
If anyone has any idea where Im going wrong please do comment...

One of the important CLI command in Flutter is flutter doctor. This command will check the current status of the flutter information. If some software is missing or not working then it will show a warning.
Check the documentation for an example (this is for Windows OS setup).
See also macOS setup, Linux and Chrome OS.

why my flutter project keep getting error?

I want to use the jitsi_meet flutter package example.
https://github.com/gunschu/jitsi_meet
clone is done.
but when I run it gradle sends an error.
Running Gradle task 'assembleDebug'...
FAILURE: Build failed with an exception.
What went wrong:
Could not determine the dependencies of task ':jitsi_meet:compileDebugAidl'.
Could not resolve all task dependencies for configuration ':jitsi_meet:debugCompileClasspath'.
Could not resolve org.jitsi.react:jitsi-meet-sdk:2.8.0.
Required by:
project :jitsi_meet
Could not resolve org.jitsi.react:jitsi-meet-sdk:2.8.0.
Could not get resource 'https://github.com/jitsi/jitsi-maven-repository/raw/master/releases/org/jitsi/react/jitsi-meet-sdk/2.8.0/jitsi-meet-sdk-2.8.0.pom'.
Could not GET 'https://raw.githubusercontent.com/jitsi/jitsi-maven-repository/master/releases/org/jitsi/react/jitsi-meet-sdk/2.8.0/jitsi-meet-sdk-2.8.0.pom'. Received status code 403 from server: Forbidden
Try:
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BUILD FAILED in 1m 49s
Finished with error: Gradle task assembleDebug failed with exit code 1
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.0'
}
}
allprojects {
repositories {
google()
jcenter()
}
}

Develop Reference

The Android operating system is a mobile operating system that was developed by Google (GOOGL?) to be primarily used for touchscreen devices, cell phones, and tablets.

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