B4J Question ABMMaterial Problem

[BigBoss123]

I'm have a problem compiling the latest version (2.20) with this error 'srvr.AddBackgroundWorker("ABMCacheScavenger")' = unknownmember:AddBackgroundWorker
Which library is this function found so I can add it?

 

[alwaysbusy]

You need jServer 2.70, see https://www.b4x.com/android/forum/threads/server-background-workers.73269/#content