use solana_sdk::account::KeyedAccount; use solana_sdk::instruction::InstructionError; use solana_sdk::pubkey::Pubkey; use solana_sdk::solana_entrypoint; solana_entrypoint!(entrypoint); fn entrypoint( _program_id: &Pubkey, _keyed_accounts: &mut [KeyedAccount], _data: &[u8], ) -> Result<(), InstructionError> { Err(InstructionError::GenericError) }