Unable to deploy smart contract from remix to metamask

[okotnorbert]

Hello, I'm currently trying to deploy a smart contract using Injected Provider MetaMask Environment on REMIX IDE. Unfortunately, remix isn't connecting to my metamask account. Has anyone encountered this before?! Injected Web3 Environment is no longer available on my Remix version.

[alymurtazamemon]

@okotnorbert Make sure your code compiles correctly and has no issues, also try to remove the cache for a remix or try a different browser so you can test. I should open metamask if you selected an Injected Provider MetaMask option in the deploy section.

[okotnorbert]

Thank you. I was successful after removing cache for REMIX.

[flymauntains]

Perhaps, RPC URL is wrong. Try change RPC URL.

[akshaybakshi123]

Troubleshooting: Unable to Deploy Smart Contract from Remix to MetaMask
Understanding the Deployment Workflow
Deploying a smart contract from Remix IDE to MetaMask is a standard practice for Ethereum developers. Remix is a browser-based Solidity IDE that allows you to write, compile, and deploy contracts directly. MetaMask, a popular crypto wallet, acts as a bridge to sign transactions and interact with blockchain networks like Ethereum, Sepolia, or Polygon. However, deployment issues are common—especially for beginners or in unstable environments.

Common Causes of Deployment Failures
One of the main issues is not selecting the right environment in Remix. Ensure you're using "Injected Provider - MetaMask" so Remix can access your MetaMask wallet and network settings. Another common problem is network mismatch—your MetaMask wallet must be connected to the same testnet (e.g., Sepolia) as the one you're deploying to. Also, make sure you have enough testnet ETH to cover gas fees, or the transaction will be rejected.

Sometimes, MetaMask doesn't prompt for transaction approval due to browser cache issues or denied permissions. Refreshing both MetaMask and Remix, and clearing cache, often resolves this.

For consistent results and secure deployment pipelines, professional teams often rely on smart contract development services providers who configure these environments with automated scripts and robust CI/CD integration.