Five islands will be destroyed as part of the airport project.
Haris Abdul Gafoor was stabbed to death last year.
The man was stabbed eight times on Tuesday morning.
The lawmakers were arrested on Gadhdhoo ahead of President Yameen's visit to the island.
The court did not give a reason for throwing the charges out.
The president denied thwarting the investigation into the missing journalist, "who is now dead."
It is almost four years since Ahmed Rilwan disappeared.
The proposed airport could be unusable because of flood risks.
The minister said he used Facebook to get news of a threat out fast.
Couples can choose from five different wedding themes: Maldivian, Chinese, floral, sunset and vintage.
Ibrahim Rasheed was severely beaten during a police crackdown on February 8, 2012.
Mohamed Abdul Rahman was charged with terrorism for participating in a foreign war.
The application was submitted last month by prominent lawyer Abdulla Haseen.
The president has yet to submit his candidacy application for the September election.
If the president thought prison would silence his former right-hand man, he was wrong.
The government has been accused of seeking a pretext to delay the September 23 presidential election.
The opposition was able to put up campaign posters on Friday without police obstruction.
