# Unresolved reference for few java classes

**URL:** <https://discuss.kotlinlang.org/t/unresolved-reference-for-few-java-classes/16776>\
**Category:** Android\
**Created:** [March 20, 2020, 3:17pm UTC](https://discuss.kotlinlang.org/t/unresolved-reference-for-few-java-classes/16776 "2020-03-20T15:17:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![archana231](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.kotlinlang.org/archana231/32/7340_2.png) [@archana231](https://discuss.kotlinlang.org/u/archana231)\
**Post date:** [March 20, 2020, 3:17pm UTC](https://discuss.kotlinlang.org/t/unresolved-reference-for-few-java-classes/16776/1 "2020-03-20T15:17:08Z")

</div>

Hi

I am trying to introduce Kotlin to my Java only android project. Since we have an older gradle version(3.0.1), i got kotlin 1.3.0 so i can start kotlin with least possible changes to existing libraries.

I was able to create two new classes in kotlin and write a test for one successfully. The second test, when i run it, it gives an Unresolved reference on the POJOs i am importing. The only diff i see in these classes are, while other classes were in src/test/java/com.example/utils, these classes are in src/test/java/com.example with no folder.

Is there anything in the set up i am missing?

Here are the configuration changes i made: (app still runs fine but only the tests fail)  
(build.gradle)  
classpath ‘com.android.tools.build:gradle:3.0.1’  
classpath “org.jetbrains.kotlin:kotlin-gradle-plugin:1.3.0”

(app build.gradle)  
apply plugin: ‘kotlin-android’  
apply plugin: ‘kotlin-android-extensions’  
implementation “org.jetbrains.kotlin:kotlin-stdlib-jdk8:1.3.0”  
implementation “org.jetbrains.kotlin:kotlin-reflect:1.3.50”  
sourceSets {  
main.java.srcDirs += ‘src/main/java’  
}