Android Question B4AGraphView - EdgeEffectCompat

Hi B4A

I've been using the B4AGraphview library for a long time now. Suddenly, a problem and can't find the solution on the internet.

Compiling and running my app or the B4AGraphview example provided, generates the error:

java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/widget/EdgeEffectCompat;

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With hours passing and no sight of solving it, I've done a complete re-installation of Java, Android SDK and B4A as per instructions. Now running jdk1.8.0_251, B4A v9.80 and checked the Android SDK in B4A and unfortunately, no success:



Thanks in advance