Androidx migration issues and Gson vs Moshi upgrade

Androidx migration

If you have this in your gradle :

 compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
then you are telling android to use java 8.

then the problem happens if you are using a library that does not support java 8 (i.e it uses something from java 7 that is not allowed in java 8)

for me the problem happens because I had the following in my gradle

implementation 'com.google.code.gson:gson:2.8.6'
which seems not to support java 8 , I have solved it be removing the Gson library and used moshi instead of it for json to model parsing



https://stackoverflow.com/questions/49891730/invoke-customs-are-only-supported-starting-with-android-0-min-api-26

https://stackoverflow.com/questions/52889075/migrating-androidx-run-error-android-support-annotation-does-not-exist