failed to deploy solana smart contract (solang compiler)

Question

I run:

• Solana-keygen new --force
• solana airdrop 5
• I have a solidity smart contract that looks like this:

// SPDX-License-Identifier: MIT
pragma solidity ^0.7.0;

contract ERC20 {
    
    uint public x = 0;

    constructor() {
        x = 30;
    }
}

and I run solang ERC20.sol --target solana --output build to compile it for solana from solidity.

As the last step, I am trying to deploy the program:

solana program deploy build/bundle.so

Problem:

Error: Deploying program failed: Error processing Instruction 1: invalid account data for instruction

Here is the transaction: Link

Answer 1

Unfortunately you can't use the solana command line tool to deploy a solidity contract. You can use javascript for now: https://solang.readthedocs.io/en/latest/targets.html#solana

We are considering options for making it easier to use from the command line, but that's in the in planning phase.