try reverting Android minSdk to 21

[aSemy]

Might resolve #893.

Changing minSdk was done in PR #863 , which was a modified PR based on #829. I don't know if the minSdk is required to be 26 - it doesn't seem like 23 has any problems.

[Raibaz]

Can you try setting minSdkVersion to 21 for additional backwards compatibility?

[SimonMarquis]

There are no compilation errors/warnings on my end when downgrading to minSdk = 21 👍

[SimonMarquis]

My bad, there is at least one warning: Cast from ArraySet to Set requires API level 23 (current min is 21) for

mockk/modules/mockk-agent-android/src/main/java/io/mockk/proxy/android/AndroidMockKMap.java

Line 203 in fe36b92

Set<Object> mocks = new ArraySet<>(adapters.size());

and

mockk/modules/mockk-agent-android/src/main/java/io/mockk/proxy/android/AndroidMockKMap.java

Lines 234 to 235 in fe36b92

	Set<Entry<Object, MockKInvocationHandler>> entries = new ArraySet<>(
	adapters.size());

And another two for the constructor calls: Call requires API level 23 (current min is 21): new android.util.ArraySet

[aSemy]

In this case the warnings aren't a problem :)