Gapps Android 6.0.1

You flashed GApps after booting the ROM once, or you used a "stock" variant that replaced the default launcher. Fix:

opengapps.org Status: Discontinued for 6.0.1, but archives exist. Open GApps was the universal solution. For 6.0.1, you need to select: Platform: ARM / Android: 6.0 / Variant: pico, nano, or micro. gapps android 6.0.1

GApps are a collection of Google’s core applications and services. They include the Google Play Services framework, which is the backbone for app updates, location services, and account syncing. Without GApps, your Marshmallow device is restricted to open-source alternatives or sideloading APKs, which can be tedious and less secure. Choosing the Right Architecture You flashed GApps after booting the ROM once,

Stock ROMs already include Google apps. Flashing GApps will cause a conflict. Only flash on AOSP-based custom ROMs. Without GApps, your Marshmallow device is restricted to