title: Runtime JAR files in the classpath have the version 1.4, which is older than the API version 1.5?
body: <p>I'm getting this error while trying to build a release version of my app. I'm not using kotlin dependencies so can someone tell me how I can fix this, please?</p>
  <p>Error Log:</p>
  <blockquote>
  <p>Runtime JAR files in the classpath have the version 1.4, which is older than the API version 1.5. Consider using the runtime of version 1.5, or pass '-api-version 1.4' explicitly to restrict the available APIs to the runtime of version 1.4. You can also pass '-language-version 1.4' instead, which will restrict not only the APIs to the specified version, but also the language features
  w: /Users/meggan/.gradle/caches/modules-2/files-2.1/org.jetbrains.kotlin/kotlin-stdlib-jdk7/1.4.32/3546900a3ebff0c43f31190baf87a9220e37b7ea/kotlin-stdlib-jdk7-1.4.32.jar:</p>
  </blockquote>
  <p>My build.gradle (app):</p>
  <pre><code>buildscript {
      repositories {
          google()
          maven { url 'https://plugins.gradle.org/m2/' }
      }
  
  }
  
  plugins {
      id 'com.android.application'
      id 'com.onesignal.androidsdk.onesignal-gradle-plugin'
      id 'com.google.gms.google-services'
      id 'com.google.firebase.crashlytics'
  }
  
  android {
      compileSdkVersion 30
      buildToolsVersion '30.0.3'
      defaultConfig {
          applicationId &quot;com.myapp.app&quot;
          minSdkVersion 21
          targetSdkVersion 30
          versionCode 10
          versionName &quot;1.0&quot;
          vectorDrawables.useSupportLibrary = true
          resConfigs &quot;en&quot;
      }
  
      buildTypes {
          release {
              minifyEnabled true
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
          }
      }
  
      compileOptions {
          sourceCompatibility JavaVersion.VERSION_1_8
          targetCompatibility JavaVersion.VERSION_1_8
      }
  
      packagingOptions {
          exclude 'META-INF/DEPENDENCIES'
          exclude 'META-INF/LICENSE'
          exclude 'META-INF/LICENSE.txt'
          exclude 'META-INF/license.txt'
          exclude 'META-INF/NOTICE'
          exclude 'META-INF/NOTICE.txt'
          exclude 'META-INF/notice.txt'
          exclude 'META-INF/ASL2.0'
          exclude(&quot;META-INF/*.kotlin_module&quot;)
      }
  }
  
  dependencies {
      implementation fileTree(dir: 'libs', include: ['*.jar'])
  
      // Google Design &amp; Support Dependency
      implementation 'androidx.appcompat:appcompat:1.3.1'
      implementation 'androidx.legacy:legacy-support-v4:1.0.0'
      implementation 'com.google.android.material:material:1.4.0'
      implementation 'androidx.constraintlayout:constraintlayout:2.1.0'
      implementation 'androidx.recyclerview:recyclerview:1.2.1'
      implementation 'androidx.cardview:cardview:1.0.0'
      implementation 'androidx.palette:palette:1.0.0'
      implementation 'androidx.annotation:annotation:1.2.0'
  
      // Layout Libs
      implementation 'com.github.bumptech.glide:glide:4.12.0'
      implementation 'com.squareup.picasso:picasso:2.71828'
      implementation 'com.wang.avi:library:2.1.3'
      implementation 'com.ogaclejapan.smarttablayout:library:2.0.0@aar'
  
      // Connectivity Libs
      implementation 'com.squareup.retrofit2:retrofit:2.9.0'
      implementation 'com.google.code.gson:gson:2.8.8'
      implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
      implementation 'com.android.volley:volley:1.2.1'
  
      // Firebase
      implementation platform('com.google.firebase:firebase-bom:28.4.1')
      implementation 'com.google.firebase:firebase-analytics'
      implementation 'com.google.firebase:firebase-config'
      implementation 'com.google.firebase:firebase-crashlytics'
  
      // OneSignal
      implementation 'com.onesignal:OneSignal:[4.0.0, 4.99.99]'
  
  }
  </code></pre>
  <p>Project build.gradle:</p>
  <pre><code>buildscript {
      repositories {
          google()
          jcenter()
          mavenCentral()
          gradlePluginPortal()
      }
  
      dependencies {
          classpath 'com.android.tools.build:gradle:7.0.2'
          classpath 'com.google.gms:google-services:4.3.10'
          classpath 'gradle.plugin.com.onesignal:onesignal-gradle-plugin:[0.12.10, 0.99.99]'
  
          // Add the Crashlytics Gradle plugin
          classpath 'com.google.firebase:firebase-crashlytics-gradle:2.7.1'
          // NOTE: Do not place your application dependencies here; they belong
          // in the individual module build.gradle files
      }
  }
  
  allprojects {
      repositories {
          google()
          jcenter()
          mavenCentral()
          maven {
              url &quot;https://jitpack.io&quot;
          }
      }
  }
  
  task clean(type: Delete) {
      delete rootProject.buildDir
  }
  </code></pre>