AAPT error: resource drawable/... not found

Issue

After recently upgrading my android studio, I am not able to build my project anymore.

Every time I execute a build, I am struck with the following error:

error: resource drawable/splash_screen (aka com.whereisthemonkey.nowalism:drawable/splash_screen) not found.
Message{kind=ERROR, text=error: resource drawable/splash_screen (aka com.whereisthemonkey.nowalism:drawable/splash_screen) not found., sources=[C:\Users\Lucas\.gradle\caches\transforms-1\files-1.1\appcompat-v7-27.1.1.aar\cf575568f869a44c685b16e47de83a28\res\values\values.xml:1632:5-84], original message=, tool name=Optional.of(AAPT)}

This error persists, even though the file splash_screen.xml exists under the drawable folder.

Rebuilding, cleaning the project and invalidating caches did not work!

Adding the line android.enableAapt2=false does not resolve the real issue and I would therefore rather find the root of the problem.

The following shows my gradle.build file:

apply plugin: 'com.android.application'

apply plugin: 'kotlin-android'

apply plugin: 'kotlin-android-extensions'

apply plugin: 'kotlin-kapt'//https://github.com/bumptech/glide/issues/1939

android {
    compileSdkVersion 27
    buildToolsVersion "27.0.3"
    defaultConfig {
        applicationId "com.whereisthemonkey.nowalism"
        minSdkVersion 19
        targetSdkVersion 27
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
        vectorDrawables.useSupportLibrary = true
    }
    // Keep the following configuration in order to target Java 8.
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    sourceSets {
        main {
            res.srcDirs += [
                    'src/main/res-backgrounds',
                    'src/main/res-jobs',
            ]
        }
    }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation 'com.android.support:appcompat-v7:27.1.1'
    implementation 'com.android.support:cardview-v7:27.1.1'
    implementation 'com.android.support:recyclerview-v7:27.1.1'
    implementation 'com.android.support:design:27.1.1'
    implementation 'com.android.support.constraint:constraint-layout:1.1.0'

    //Do not update due to dex error
    implementation 'org.apache.commons:commons-lang3:3.6'

    //Do not update due to dex error
    implementation 'com.google.firebase:firebase-auth:11.8.0'
    implementation 'com.google.firebase:firebase-messaging:11.8.0'
    implementation 'com.google.android.gms:play-services:11.8.0'

    implementation 'com.aurelhubert:ahbottomnavigation:2.1.0'
    implementation 'com.afollestad.material-dialogs:core:0.9.6.0'
    implementation 'com.afollestad.material-dialogs:commons:0.9.6.0'

    implementation 'com.amitshekhar.android:android-networking:1.0.1'
    implementation 'org.apache.directory.studio:org.apache.commons.io:2.4'

    implementation 'com.github.ome450901:SimpleRatingBar:1.4.1'

    implementation 'com.sothree.slidinguppanel:library:3.4.0'

    implementation 'com.github.esafirm.android-image-picker:imagepicker:1.12.0'
    //Do not update due to dex error
    implementation 'com.theartofdev.edmodo:android-image-cropper:2.5.1'

    implementation 'com.github.bumptech.glide:glide:4.6.1'
    kapt 'com.github.bumptech.glide:compiler:4.6.1'//https://github.com/bumptech/glide/issues/1939

    implementation 'com.github.PhilJay:MPAndroidChart:v3.0.3'

    implementation 'de.hdodenhof:circleimageview:2.2.0'

    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

    implementation 'com.firebaseui:firebase-ui-auth:3.2.1'
    implementation 'com.android.support:support-v4:27.1.1'
}


apply plugin: 'com.google.gms.google-services'

Any help is kindly appreciated.

Solution

I fixed the error, which was probably coming from a mal-formatted copied XML file (probably some line-ending confusion)

Rewriting those fixed the error, although Android Studio displayed another file as the source of the problem, which in fact had nothing to do with the error itself.

Answered By - Lucas Romier