add-account.rs

// Old code
#[derive(Accounts)]
pub struct TestIx<'info> {
    account1: UncheckedAccount<'info>,
}
        
// New code
#[derive(Accounts)]
pub struct TestIx<'info> {
    account1: UncheckedAccount<'info>,
    account2: UncheckedAccount<'info>,
}
    
// Error
// Error: AnchorError caused by account: account2. Error Code: AccountNotEnoughKeys. Error Number: 3005. Error Message: Not enough account keys given to the instruction.