Not able to install app using adb command I have a broken screen in my device due to that i am not able to take back of contact and other data. 

I am trying to use vysor chrome plugin which installs an app and cast the screen in to web browser. 

When i try to use vysor application, i am not able to install the app in device. I am always getting below error

adb install com.koushikdutta.vysor.apk

2660 KB/s (2958940 bytes in 1.086s)
Please select on your phone whether can install the app by The ADB command?


refused to install the app by The ADB command !

I tried to install the app using pm command as well but observed the same issue.

Note : - Same issue is observed for all the apks.
Device details : - LeTv Le 2
For LeTv Le 2, Go to Settings > Fingerprint &amp; Password > Other Security Options > Install apps in background , Set this options to Yes.