Unable to find UnitConverter and Converter Exception

[anshul90]

Describe the bug I'm adding FIHR Engine as the module in my project but unable to find UnitConverter and Converter Exception. I'm creating a new build.gradle as my project supports Groovy files only. Mentioned my gradle.file below . I'm getting only two errors:

1. Unable to UnitConverter and Converter Exception
2. Cannot access of FilterCriteria file.

plugins {
    id 'com.android.library'
    id 'kotlin-android'
}

android {
    compileSdkVersion 30
    buildToolsVersion "30.0.2"

    defaultConfig {
        minSdkVersion 28
        targetSdkVersion 30
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
        consumerProguardFiles "consumer-rules.pro"
    }

    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 {
    def work_version = "2.7.1"
    def roomVersion = "2.3.0"

    //Room Library
    implementation "androidx.room:room-runtime:$roomVersion"
    annotationProcessor("androidx.room:room-compiler:$roomVersion")
    //Kotlin Extensions and Coroutines support for Room
    implementation("androidx.room:room-ktx:$roomVersion")

    implementation "androidx.appcompat:appcompat:$app_compat"
    implementation "com.google.android.material:material:$mat_ver"

    //kotlin coroutine
    implementation "org.jetbrains.kotlin:kotlin-stdlib:$kotlin_version"
    implementation "androidx.core:core-ktx:$ktx_extension"
    implementation "androidx.work:work-runtime-ktx:$work_version"

    //network
    implementation "com.squareup.retrofit2:retrofit:$retrofit"
    implementation "com.squareup.retrofit2:converter-gson:$retrofit"
    implementation "com.google.code.gson:gson:$gson"
    implementation "com.squareup.okhttp3:okhttp:$okhttp"
    implementation "com.squareup.okhttp3:logging-interceptor:$okhttp"

    testImplementation 'junit:junit:4.+'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'

    //Data Store
    implementation "androidx.datastore:datastore-preferences:1.0.0"

    //Fhir Hapi libraries
    implementation 'ca.uhn.hapi.fhir:hapi-fhir-android:6.0.1'
    //implementation 'ca.uhn.hapi.fhir:hapi-fhir-client:5.7.2'
    //implementation 'ca.uhn.hapi.fhir:hapi-fhir-base:6.0.1'
    implementation 'ca.uhn.hapi.fhir:hapi-fhir-structures-r4:6.0.1'

    //Log Timber
    implementation "com.jakewharton.timber:timber:5.0.1"

    //android ktx
    implementation "androidx.core:core-ktx:$ktx_extension"
    implementation "androidx.lifecycle:lifecycle-viewmodel-ktx:$lfcycle"
    implementation "androidx.lifecycle:lifecycle-livedata-ktx:$lfcycle"

    //Sqlite
    implementation 'net.zetetic:android-database-sqlcipher:4.5.1@aar'
    implementation 'androidx.sqlite:sqlite:2.0.1'

    //JSON Patch
    implementation("com.github.fge:json-patch:1.7")
}

Added the screenshots of both the errors below.