HONG KONG — The Hong Kong government vowed on Tuesday to press ahead with an election proposal that ignited months of street protests last year, using a report originally offered as a concession to student demonstrators to warn that the authorities would not shift course from plans laid down by Beijing.

The report, which was presented by the local government as a summary of the protests that erupted in late September and the state of public opinion in the city, was released as the police told organizers and prominent supporters of the protests to prepare for arrest. And the city’s chief executive, Leung Chun-ying, warned against any attempt to repeat street blockades.

Mr. Leung said that there would be a new round of public consultations on the election plans but that any suggestions had to follow the Basic Law, the framework that established Hong Kong’s status as a special region under Chinese sovereignty. China has said the Basic Law rules out the protesters’ demand that members of the public have a more direct say in nominating future candidates for Mr. Leung’s job. The chief executive is now chosen by an elite committee loyal to Beijing.

“Nothing can coerce the central and special administrative region government,” Mr. Leung said on Tuesday, according to his website. “Because Hong Kong is, I repeat once more, a society of rule of law.”