The Great British Beer Festival has been cancelled for 2024 because its London venue was not available.Organisers said the annual celebration, which had been due to be held at West Kensington’s Olympia Exhibition Centre, could not go ahead as the building was not available for the dates required.The flagship event, run by the Campaign for Real Ale (CAMRA), is usually held in the first week of August and attracts more than 60,000 beer enthusiasts and brewers. It is among Britain's largest beer events and has been held since 1977.