If you are upgrading from version 6.x to version 7.x and you are seeing a message that looks like this:DB::Q->scalar must return exactly one value: got 0 rows, N/A cols at Mercury/Utility/Assert.pm line 45 3 ( Mercury/DB/Q.pm:55) ASSERT 2 (Mercury/MigrateDB/CheckInterfaceUIDs.pm:16) Mercury::DB::Q::scalar('Mercury::DB::Q', 'select version from seas_config') 1 ( -e: 1) Mercury::MigrateDB::CheckInterfaceUIDs::check('Mercury::MigrateDB::CheckInterfaceUIDs') make: *** [check_interface_uids] Error 2 ...please refer to the Knowledge Base article:While trying to upgrade I'm getting a Hangup errorhttp://kb.airwave.com/?sid=50140000000aCn5Otherwise...If the upgrade fails with the following message:=====================================Duplicate interface UIDs detected during pre-upgrade sanity check. Please contact Airwave support.make: *** [check_interface_uids] Error 1Upgrade aborted. Please contact AirWave Support.1-866-WiFi-AMP or email@example.comGoodbye=====================================...this is not a serious error. DO NOT TRY TO RUN THE UPGRADE AGAIN. Please contact AirWave Support as mentioned in the error message for steps on how to proceed. Your AMP should still be on the pre-upgrade version and should still be fully usable. If you are seeing a message like:DISABLED 1Repeat the following command until the message goes away. # amp_enableIf the DISABLED message continues to appear after running this command a few times, please let us know.
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