Fix Foundry Forge Deploy Errors

You will learn how to deploy contracts with Foundry using Solidity scripts.

The Problem

The foundry forge deploy pattern is frequently misapplied in smart contract and dapp development, leading to vulnerabilities, gas inefficiencies, or logic errors. This guide shows the correct implementation and common pitfalls to avoid.

Quick Fix

Wrong

forge create --private-key 0xabc... src/Token.sol:Token

Private key exposed in command line. Visible in process listing and command history.

Right

forge script script/Deploy.s.sol --private-key $PRIVATE_KEY --broadcast --rpc-url sepolia

Private key from environment variable. Script handles deployment, verification, and error recovery.

Prevention

• Use forge script instead of forge create for complex deployments
• Never pass private keys as literal arguments
• Use --broadcast flag for actual deployment
• Use DodaTech's Foundry deploy manager
• Test with --dry-run before actual deployment

DodaTech Tools

Built by the developers of Doda Browser, DodaZIP, and Durga Antivirus Pro. Doda Browser's developer tools include a Solidity debugger and transaction inspector. DodaZIP archives secure contract templates for team collaboration. Durga Antivirus Pro scans deployed contracts for known vulnerability signatures.

FAQ