I was following the instructions given on this https://developers.google.com/ar/develop/java/getting-started Google Developers Website but when I tried to install the APK file on my Android Device via Terminal (macOS)
Terminal gave me this error:
$ adb devices -l List of devices attached 93eafadd device usb:336592896X product:kenzo model:Redmi_Note_3 device:kenzo
$ adb install -r -d arcore-preview.apk Invalid APK file: arcore-preview.apk Sayans-iMac:~ sayan$
So I even transferred the APK to my Android device and tried to install it in the Android device it self manually, but I got this error: error parsing package! I don't know why this is happening and I have also enabled USB debugging!
I had this same problem, but had not pointed adb to the right package:
adb install -r -d ~/Downloads/arcore-preview.apk
"Your download directory might vary."