Error: null, Cannot fit requested classes in a single dex file (# methods: 98549 > 65536)
Solution:
app.gradle file add
defaultConfig {
applicationId "com.m27lab.messmanager.app"
minSdkVersion 16
targetSdkVersion 28
versionCode 15
versionName "7.2.2"
multiDexEnabled true
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
//vectorDrawables.useSupportLibrary = true
}