Gradle build failed

Hello guys

After recent android SDK update I’ve encountered a problem trying to buid my application.
It seems like there is something wrong with gradle, but i can’t understand what exactly.
Here is what Unity says after building the project

If somebody knows what i need to do, please help me

“Welcome to Gradle 5.6.4! Here are the highlights of this release: - Incremental Groovy compilation - Groovy compile avoidance - Test fixtures for Java projects - Manage plugin versions via settings script For more details see Gradle 5.6.4 Release Notes Starting a Gradle Daemon (subsequent builds will be faster) > Configure project :launcher WARNING: The option ‘android.enableR8’ is deprecated and should not be used anymore. It will be removed in a future version of the Android Gradle plugin, and will no longer allow you to disable R8.
Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8 FAILURE: Build failed with an exception. * What went wrong: Could not determine the dependencies of task ‘:unityLibrary:generateDebugRFile’. > Could not resolve all task dependencies for configuration ‘:unityLibrary:debugCompileClasspath’. > Could not find com.ironsource.sdk:mediationsdk:7.1.8. Required by: project :unityLibrary * 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 1m 27s
CommandInvokationFailure: Gradle build failed.
/Library/Java/JavaVirtualMachines/jdk1.8.0_261.jdk/Contents/Home/bin/java -classpath ‘/Volumes/2020_3_6f1/PlaybackEngines/AndroidPlayer/Tools/gradle/lib/gradle-launcher-5.6.4.jar’ org.gradle.launcher.GradleMain ‘-Dorg.gradle.jvmargs=-Xmx4096m’ ‘assembleDebug’ stderr[ Picked up JAVA_TOOL_OPTIONS: -Dfile.encoding=UTF-8 FAILURE: Build failed with an exception. * What went wrong: Could not determine the dependencies of task ‘:unityLibrary:generateDebugRFile’. > Could not resolve all task dependencies for configuration ‘:unityLibrary:debugCompileClasspath’. > Could not find com.ironsource.sdk:mediationsdk:7.1.8. Required by: project :unityLibrary * 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 1m 27s ] stdout[ Welcome to Gradle 5.6.4! Here are the highlights of this release: - Incremental Groovy compilation - Groovy compile avoidance - Test fixtures for Java projects - Manage plugin versions via settings script For more details see Gradle 5.6.4 Release Notes Starting a Gradle Daemon (subsequent builds will be faster) > Configure project :launcher WARNING: The option ‘android.enableR8’ is deprecated and should not be used anymore. It will be removed in a future version of the Android Gradle plugin, and will no longer allow you to disable R8. ] exit code: 1”

Cross check once the library is resolved or not once. In-case Iron source uses External dependency resolver, make sure you call “Force Resolve” option at-least once.