1,200 pissed off Tyga fans got downright DESTRUCTIVE when the rapper no-showed at a concert he was allegedly scheduled to put on earlier this month ... law enforcement tells TMZ. 

It all went down on January 6th  ... when hundreds of teenagers packed into the World Beat Center in San Diego after buying tickets to a Tyga show.

A rep for the WBC tells us Tyga bailed on the show without warning ... and when the crowd realized he wasn't coming, they went BERSERK -- completely trashing the place. 

We're told private security tried to break up the madness, but it was too insane ... so they called the San Diego PD for backup.

The SDPD tells us 12 officers were dispatched to the scene -- who eventually cleared everyone out and restored order.

But the damage was already done -- busted floors, walls, destroyed property -- and now, the manager at World Beat Center is furious ... telling TMZ, Tyga has forever been banned from the place for life.

We placed multiple calls to Tyga's people for comment -- so far, radio silence.

Rapper Tyga was locked up in Las Vegas this weekend ... after cops discovered the 22-year-old had an active warrant out for his arrest ... TMZ has learned.

Law enforcement sources tell us ... Tyga -- real name Michael Stevenson -- was initially flagged on a routine traffic violation ... but during the stop, cops discovered the warrant stemming from 4 other traffic incidents.

According to KSNV in Nevada ... Tyga's prior issues include driving without a license, registration violations and unlawful acts of financial responsibility.

The "Rack City" and "Coconut Juice" rapper was hauled to the Clark County Detention Center where he was booked and tossed behind bars. He was released the next day on his own recognizance.

Story developing ...