I'm new to android developing and I've been facing some problems on adding this library to my project. I'm using android studio flamingo 2022. When I execute the app I end up getting the error log:

java.lang.RuntimeException: Unable to start activity ComponentInfo{app.project.jabayo/app.project.jabayo.activity.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3909) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:4055) at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:101) at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135) at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2415) at android.os.Handler.dispatchMessage(Handler.java:106) at android.os.Looper.loopOnce(Looper.java:211) at android.os.Looper.loop(Looper.java:300) at android.app.ActivityThread.main(ActivityThread.java:8395) at java.lang.reflect.Method.invoke(Native Method) at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:559) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:954) Caused by: java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.Class java.lang.Object.getClass()' on a null object reference at com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx.getBottomNavigationItemViews(BottomNavigationViewEx.java:569) at com.ittianyu.bottomnavigationviewex.BottomNavigationViewEx.enableAnimation(BottomNavigationViewEx.java:341) at app.project.jabayo.activity.MainActivity.bottomNavigationViewConfig(MainActivity.java:66) at app.project.jabayo.activity.MainActivity.onCreate(MainActivity.java:43) at android.app.Activity.performCreate(Activity.java:8538) at android.app.Activity.performCreate(Activity.java:8502) at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1440) at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3890) ... 12 more

The line 21 of my file bottom_navigation.xml calls the bottom navigation menu, like this:

app:menu="@menu/menu_bottom_navigation" />

The file menu_bottom_navigation.xml only contains the icons for the bottom navigation bar.

I checked the BottomNavigationViewEX.java file and it didn't have any error but the BottomNavitagionViewInner.java had the "Library source does not match the bytecode for class BottomNavigationViewInner" error.

I also couldn't find the com.google.android.material.R$styleable class.

I belive the problem can be related to the 'com.google.android.material:material:1.5.0' implementation. These are my build.gradle (app) dependencies:

`dependencies {

implementation 'androidx.appcompat:appcompat:1.6.1'
implementation 'com.google.android.material:material:1.5.0'
implementation 'androidx.constraintlayout:constraintlayout:2.1.4'
implementation 'androidx.lifecycle:lifecycle-livedata-ktx:2.6.1'
implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.6.1'
implementation 'androidx.navigation:navigation-fragment:2.5.3'
implementation 'androidx.navigation:navigation-ui:2.5.3'
testImplementation 'junit:junit:4.13.2'
androidTestImplementation 'androidx.test.ext:junit:1.1.5'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.5.1'

implementation(platform("org.jetbrains.kotlin:kotlin-bom:1.8.0"))

/*Firebase*/
implementation platform('com.google.firebase:firebase-bom:32.1.1')
implementation 'com.google.firebase:firebase-database'
implementation 'com.google.firebase:firebase-storage'
implementation 'com.google.firebase:firebase-auth'
implementation 'com.google.firebase:firebase-analytics'

/*bottom navigation*/
implementation 'com.github.ittianyu:BottomNavigationViewEx:2.0.4'

}`

And my setting.gradle:

pluginManagement { repositories { google() mavenCentral() gradlePluginPortal() } } dependencyResolutionManagement { repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS) repositories { google() mavenCentral() maven { url "https://jitpack.io" } maven { url "https://maven.google.com" } } } rootProject.name = "Jabayo" include ':app'

I apologize if my question is a bit confusing, I really am new to this.