code doesn't recognize link classes

[SavedByZero]

The problem

even with the dependency loaded in the app gradle file, Link classes are "unable to resolve"

Environment

Android Studio 4.1, Windows PC

Steps to Reproduce

-add implementation "com.plaid.link:sdk-core:3.7.1" to app gradle file
-make a java class inside app/src/main
-import classes like:
import com.plaid.link.OpenPlaidLink;
import com.plaid.link.Plaid;
.
-none of them are recognized.

here is my app gradle build file:

`plugins {
id 'com.android.application'
id 'kotlin-android'
}

android {
compileSdkVersion 31
buildToolsVersion "30.0.2"

defaultConfig {
    applicationId "com.example.plaidlinkplugin"
    minSdkVersion 21
    targetSdkVersion 30
    versionCode 1
    versionName "1.0"


}

buildTypes {
    release {
        minifyEnabled false

    }
}
compileOptions {
    sourceCompatibility JavaVersion.VERSION_1_8
    targetCompatibility JavaVersion.VERSION_1_8
}
kotlinOptions {
    jvmTarget = '1.8'
}

}

dependencies {
implementation ("com.plaid.link:sdk-core:3.7.1") {

}

implementation 'androidx.core:core-ktx:1.5.0'
implementation 'androidx.appcompat:appcompat:1.3.0'
implementation 'com.google.android.material:material:1.3.0'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'

}`

and here is my root gradle build file:
`// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
ext.kotlin_version = "1.5.10"
repositories {
google()
jcenter()
mavenCentral()
}
dependencies {
classpath "com.android.tools.build:gradle:4.1.0"
classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"

    // NOTE: Do not place your application dependencies here; they belong
    // in the individual module build.gradle files
}

}

allprojects {
repositories {
google()
jcenter()
mavenCentral()
}
}

task clean(type: Delete) {
delete rootProject.buildDir
}`

[amytang0]

Hi does this issue repro with our public sample (in this repo)? We have Java classes to ensure compatibility: https://github.com/plaid/plaid-link-android/blob/master/app/src/main/java/com/plaid/linksample/MainActivityStartActivityForResultJava.java

[SavedByZero]

Correct. I cloned the project as well to make sure, and I get the same unresolved packages without anything being changed. Here's a screen shot of that last class file you linked to. EDIT: It seems to actually happen in the ks files and the Java files, and sometimes it alternates.

[JeroenMols]

Are you able to build via command line? You can verify that by running ./gradlew assembleDebug.
If that passes, that would indicate this is an Android Studio issue.

To fix the Android Studio issue:

• Try invalidate caches & restart in Android Studio
• If that doesn't work, delete the .idea folder in your project
• If that doesn't work, delete the .gradle folder in your user home: rm -rf ~/.gradle

Hope those steps will help!