OpenCV manager 2.4.9 incompatible with Android 8.0

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I am trying to get an Android app written back in 2014 back to work. The app uses OpenCV 2.4.9, therefore requiring OpenCV manager 2.4.9. However, all the manager apks in the apk directory of the OpenCV Android SDK 2.4.9 either unable to install or displays Hardware: not detected upon opening. Is there a way to get its functionality back without completely rewritting the whole app?