Lottie-android: Series of Issues with the version 2.8.0

[Algit73]

Hi,

I'm just new to Lottie and it is going to exhaust me with no clear answer.

I'm using Android SDK version 28 with the minimum SDK version 23. First, I just add implementation 'com.airbnb.android:lottie:2.8.0' simply in my gradle. Syncing it arises no error. Then Android studio tells me this:

Manifest merger failed : Attribute application@appComponentFactory value=(android.support.v4.app.CoreComponentFactory) from [com.android.support:support-compat:28.0.0] AndroidManifest.xml:22:18-91
is also present at [androidx.core:core:1.0.0] AndroidManifest.xml:22:18-86 value=(androidx.core.app.CoreComponentFactory).
Suggestion: add 'tools:replace="android:appComponentFactory"' to element at AndroidManifest.xml:6:5-21:19 to override.

Then I simply add two attributes: tools:replace="android:appComponentFactory" and android:appComponentFactory="whateverString" in my manifest application to solve it.

Now I will face a series of problems. First this message appears which tells me that "META-INF/androidx.legacy_legacy-support-core-utils.version" has already an installed version. Then I exclude it in my gradle: packagingOptions { exclude 'META-INF/androidx.legacy_legacy-support-core-utils.version' }.

Then this message appears:

D:...\Lottie_Tetst\app\build\intermediates\transforms\mergeJavaRes\debug\0.jar: The process cannot access the file because it is being used by another process.

I've migrated my code to androidx and the result was nothing. Also I've added compileOptions { sourceCompatibility JavaVersion.VERSION_1_8 targetCompatibility JavaVersion.VERSION_1_8 }
Then the result was nothing. I'm totally sticked with loop of errors and I've no idea how to confront them.

Help me please!

Bests
Alireza Alikhani

[gpeal]

@Algit73 2.8.0 requires migrating to AndroidX. You must use 2.7.0 if you haven't upgraded.
CHANGELOG

[GorkemKarayel]

@Algit73 2.8.0 requires migrating to AndroidX. You must use 2.7.0 if you haven't upgraded.
CHANGELOG

I agree. I'm getting this error in version 2.8.0.

• What went wrong:
  Execution failed for task ':app:transformDexArchiveWithExternalLibsDexMergerForDebug'.
  > com.android.builder.dexing.DexArchiveMergerException: Error while merging dex archives: