ELF error when trying to deploy solana anchor program

Question

I'm new to solana. When i run solana program deploy target/release/libsol_contract.so it shows ELF error: Failed to parse

Lib.rs:

use anchor_lang::prelude::*;

declare_id!("11111111111111111111111111111111");

#[program]
mod hello_world {
    use super::*;
    pub fn say_hello(_ctx: Context<SayHello>) -> Result<()> {
        msg!("Hello World!");       
        Ok(())
    }
}

#[derive(Accounts)]
pub struct SayHello {}

When I run solana program deploy target/release/libsol_contract.so I get:

Error: ELF error: ELF error: Failed to parse ELF file: Section or symbol name .note.gnu.build- is longer than 16 bytes

Answer 1

When using the anchor framework you should use the anchor deploy command. If it's the first time building the project you should run the anchor build command. This will compile your project and install all the necessary dependencies.

Note: It's important to consider how you've installed Anchor. I recommend installing using the Anchor Version Manager(AVM), this will significantly reduce the likelihood of encountering dependency-related issues.

Answer 2

The program’s build command is not cargo build —-release it should be cargo build-sbf.