Issue to add DLMS library in my android project

I am adding 'com.github.gurux:gurux.dlms.android:-SNAPSHOT'

plugins {
alias(libs.plugins.androidApplication)
}

android {
namespace 'com.example.meterconnect'
compileSdk 34

defaultConfig {
applicationId "com.example.meterconnect"
minSdk 24
targetSdk 34
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
}
}

dependencies {

implementation libs.appcompat
implementation libs.material
implementation 'com.github.gurux:gurux.dlms.android:-SNAPSHOT'
testImplementation libs.junit
androidTestImplementation libs.ext.junit
androidTestImplementation libs.espresso.core
}
to my build.gradle file but it shows an error
Failed to resolve: com.github.gurux:gurux.dlms.android:-SNAPSHOT

i want to use the gurux dlms library to make an application to connect to my smart meter