migrate compileSdkVersion 31 to 30

[saurabh88888888]

for compileSdkVersion 30 this library not sync and after migrating compileSdkVersion 30 to 31 it occurs error

Compilation failed; see the compiler error output for details.

build.gradle file:-
compileSdkVersion 31
//buildToolsVersion "30.0.3"

defaultConfig {
    applicationId "com.ultimate.ultimatesmartsystem"
    minSdkVersion 23
    targetSdkVersion 31
    versionCode 37
    versionName "2.3.5"
    multiDexEnabled true
    testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    useLibrary 'org.apache.http.legacy'

}

any solution for that its very argent for me.
thank you