Carrie Fisher can’t get a Hollywood Walk of Fame star until at least 2021, despite the Death Star strength efforts of her Star Wars co-star Mark Hamill to have a Fisher star replace Donald Trump’s.

The process is complicated. Among other reasons, the Hollywood Chamber of Commerce has a firm rule that for now derails the Carrie campaign.

Fisher and Hamill in Beverly Hills in 2014. Photo: Getty

“We would love for Carrie Fisher to have a star, but the application has to be submitted on the fifth anniversary of her death,” the chamber’s spokesperson Ana Martinez told The Los Angeles Times.

It wouldn’t be fair to families who have followed the rules for an exception to be made for Fisher, she added.

“We’ll gladly take the application on the fifth anniversary.”

Only one deceased nominee is approved every year, TMZ reported.

Hamill’s push to have Fisher honoured kicked off on Thursday (AEST) when he posted a tweet that gained instant global traction.

“Good riddance!” said Hamill, linking to an August 2018 news story reporting the West Hollywood City Council voted in favour of a proposal for President Trump evicted from the fabled real estate.

“And I know just who should replace him,” Hamill said with the hashtag “AStarForCarrie”.

Good riddance! (and I know just who should replace him….)#AStarForCarrie ⭐️ https://t.co/DF53fOxshK

— Mark Hamill (@MarkHamill) June 19, 2019

Trouble is, despite the enthusiasm for Princess Leia being remembered at the showbiz attraction instead of Mr Trump, there are administrative and political hurdles.

First up, the city of West Hollywood has nothing to do with the Walk of Fame.

It is administered by the Hollywood Chamber of Commerce, which is run out of a different city, Los Angeles.

“We don’t remove stars,” Ms Martinez told The Times.

“The stars are part of the history of the Walk of Fame.”

The Apprentice leading man Mr Trump scored his star in 2007 for his work as a producer on televised beauty pageants that he owned.

But like the stars of other fallen heroes including Michael Jackson and Bill Cosby, Mr Trump’s plaque has been the spat on, defaced and vandalised.

In 2016 it was pulverised with a sledgehammer and in 2017 someone left a golden toilet filled “with something wet and gross” on the star, according to TMZ.

It was attacked again in 2018 with a pickaxe.

Mr Trump’s defaced star in July 2018. Photo: Getty

The stars aren’t just places to take out frustrations, said Ms Martinez, who noted when Fisher died in December 2016 at the age of 60, a shrine was built on an empty star.

The chamber allowed it so fans could have a place to grieve.

For now, the makeshift star is the best Fisher devotees can hope for because of another Hollywood Chamber of Commerce rule.

“How do we know Carrie Fisher wanted one?” Ms Martinez asked.

“We don’t know if she ever was interested. She was never submitted for a star.

“We have to have something in writing from the person — they have to sign off. [In this case] her family would have to do that.”

Fisher and Hamill in London in July 1979.

According to reports, if Fisher’s family agrees to a star, they or her estate would have to pay $US50,000 ($72,400) to cover the making and installation of Fisher’s star and a replica plaque for the honoree.

The fee includes a dedication ceremony, and the city permits, security staff, barricades, rain tents and live-streaming capabilities that are needed for the event, The Times said.

Fisher’s mother, the late screen icon Debbie Reynolds, has two Walk of Fame stars, one for movies and another for live performance.

Hamill scored his star in March 2018.