Expected Android API level 21+ but was 30

user_3089034 0
Viewed 22144

How is it possible that I get this message? It does not make any sense. I'm using com.squareup.retrofit2:retrofit:2.9.0

     Caused by: java.lang.IllegalStateException: Expected Android API level 21+ but was 30
    at okhttp3.internal.platform.AndroidPlatform$Companion.buildIfSupported(AndroidPlatform.kt:370)
    at okhttp3.internal.platform.Platform$Companion.findPlatform(Platform.kt:204)
    at okhttp3.internal.platform.Platform$Companion.access$findPlatform(Platform.kt:178)
    2020-09-16 12:37:07.645 6480-6480/lv.ltt.gasogmp.dev_v3 E/AndroidRuntime:     at 
    okhttp3.internal.platform.Platform.<clinit>(Platform.kt:179)
okhttp android
4 Answers

Add an explicit dependency on OkHttp 4.9.0. Or whatever is newest at the time you read this.

This bug is embarrassing but it's been fixed for so long that you shouldn’t be encountering it in new code.

Jesse_Wilson_400130
user_64366290

Add implementation 'com.squareup.okhttp3:okhttp:4.9.2' inside android\app\build.gradle

dependencies {
    ........
    implementation 'com.google.code.gson:gson:2.8.6'
    implementation 'com.android.support:multidex:1.0.3'   
    implementation 'com.squareup.okhttp3:okhttp:4.9.2' 
    ..........
}
user_20520850

Upgrage Okhttp3 or retrofit version

Latest Okhttp3 version is 4.9.2
Latest Retrofit version is 2.9.0

implementation 'com.squareup.okhttp3:okhttp:4.9.2' 
implementation 'com.squareup.retrofit2:retrofit:2.9.0'
user_57882470
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