Gradle同步失败:找不到到请求目标的有效认证路径

systemProp.http.proxyHost=proxy.example.com
systemProp.http.proxyPort=8080
systemProp.https.proxyHost=proxy.example.com
systemProp.https.proxyPort=8080

repo.username=your_username
repo.password=your_password

systemProp.repo.username=${REPO_USERNAME}
systemProp.repo.password=${REPO_PASSWORD}

export REPO_USERNAME=your_username
export REPO_PASSWORD=your_password

repositories {
    maven {
        url "https://your-repo-url.com"
        credentials {
            username repo.username
            password repo.password
        }
    }
}

repositories {
    maven {
        url "https://your-repo-url.com"
        credentials {
            username repo.username
            password repo.password
        }
    }
}

dependencies {
    implementation 'com.example:example-library:1.0.0'
}