The star shared his reaction to their announcement via social media on Friday

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The show must go on!

Actor John Stamos reacted to the announcement that Mary-Kate and Ashley Olsen would not be joining Netflix’s Full House reboot on Friday, tweeting that he was “#heartbroken.”

The new 13-episode series, titled Fuller House, will premiere on Netflix next year, with Stamos, 51, producing and starring as his beloved character Uncle Jesse.

The show’s executive producer Robert L. Boyett confirmed to the Hollywood Reporter that the Olsens would not be joining most of of their former castmates for the onscreen reunion.

“I understand they’re in a different place and I wish them the best,” the star tweeted on Friday. “I promise you will not be disappointed with our reunion and spin off!!”

Stamos officially announced the rebooted series on April 20 during an appearance on Jimmy Kimmel Live.

After breaking the news, the twins, who shared a role as Michelle Tanner, told Women’s Wear Daily they weren’t aware of the new special.

“We just found out about it today,” Mary-Kate told WWD. “I guess we’re going to talk to the creators and see what’s happening.” However, it appears that they won’t be appearing on the series after all.

Stamos wrapped up his feelings about Mary-Kate and Ashley’s decision on Facebook, directly addressing media coverage of the 2016 series.

“Just so you reporters know – this is not a money gig for any of us – quite the opposite – we want to give the fans what they deserve for supporting us for so many years– we all just want to have fun – do it in a classy way on Netflix and have a good time,” he wrote. “Sad that a few don’t share the rest of the cast’s opinion – i can only wish them the best – JS”

Fuller House will begin with a one-hour reunion, before turning into a spin-off series featuring DJ Tanner (Candace Cameron-Bure) and her three children, along with her sister Stephanie (Jodie Sweetin) and neighbor Kimmy Gibbler (Andrea Barber).