http://forum.xda-developers.com/nexus-7-2013/development-lte/p-aosp-7-0-0r1-nougat-google-shame-t3450510

をTWRP3.0.2でflashすると

Installing Zip file '/sdcard/DEB_aosp_N_7.0 v0.6.zip'
Checking for MD5 file...
Skipping MD5 check: no MD5 file found
Target: google/razorg/flo:6.0.1/MOB30X/303618:user/
release-keys
Patching system image unconditionally...
E :unknown command [log]　　　　　　←赤表示
E :unknown command [log]　　　　　　←赤表示
script succeeded: result was [1.000000]
Updating partition details...
...done

で出来ないんですが　みんなは正常にflashできてる？