NoClassDefFoundError (NetworkChangedManager)

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AndroidRuntime: java.lang.NoClassDefFoundError: com.epicgames.ue4.network.NetworkChangedManager$1

Doesn’t happen on a newer (e.g.) OxygenOS phone but it does happen on a Galaxy Tab 4 (SM_T230) running 4.4.2.
(Yes, I know they’re awful, awful devices, but a huge chunk of our customers still use them so ditching them isn’t an option.)

I’m just following the android guide (with the click to MoveTo() guy).

Any advice?
Thanks.

2

Probably answering my own question here, but I’m wondering if this is the culprit:

From the output log:
“LogPlayLevel: Fixing minSdkVersion; NDK level above 19 requires minSdkVersion of 21 (arch=armv7)”

(Tab 4 being API level 19)

Is that a hard no for development on this device then?
Thanks.

J