The current version of Appodeal supported by Solar2D is 3.10.0.
While it works fine on most modern Android devices, I experienced a crash immediately after launch on devices running Android API level lower than 26.
I had initially missed this issue, but was able to resolve it thanks to a report from one of my users.
The solution is described below — I’m posting it here as a reference in case it helps others.
-- Project Folder\AndroidResources\corona.gradle
android {
compileOptions {
sourceCompatibility 1.8
targetCompatibility 1.8
coreLibraryDesugaringEnabled true
}
}
dependencies {
coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.1.5'
}