Android "adb install" does nothing

Question

I'm having trouble installing a simple .apk file using adb. Here's what I entered and got back:

adb install test.apk
4445 KB/s (1921193 bytes in 0.422s)

In an attempt to debug I added the trace flag and got back:

adb install test.apk ADB_TRACE=1
4445 KB/s (1921193 bytes in 0.422s)
Aborted

Also, the adb devices command does list my device and when I manually copy the .apk to my device it installs/runs fine.

Help :(

Answer 1

Try below

adb install -r test.apk

or you need to enable to insatll unknown source app in android settings.