This guide covers common issues you may encounter while using OnchainKit. If you don’t find your issue here, try searching our GitHub Issues or joining our Discord Community.

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Common Issues

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Environment Setup

  • Missing API Key
    • Error: “Project ID is required for this component”
    • Solution: Add your Client API Key to .env:
    NEXT_PUBLIC_CDP_API_KEY=YOUR_PUBLIC_API_KEY
  • Invalid Environment Variables
    • Error: “Cannot find environment variable”
    • Solution: Use the correct variable name for your framework:
      • Next.js: NEXT_PUBLIC_CDP_API_KEY
      • Vite: VITE_PUBLIC_ONCHAINKIT_API_KEY
      • Astro: PUBLIC_ONCHAINKIT_API_KEY
  • Contracts Not Available
    • Error: “Contracts are not available” or “Contracts not available for LifecycleStatus”
    • Solutions:
      • Verify NEXT_PUBLIC_ONCHAINKIT_API_KEY is set correctly
      • For Checkout component with chargeHandler, also set: 
        NEXT_PUBLIC_COINBASE_COMMERCE_API_KEY=YOUR_COMMERCE_API_KEY
      • Ensure API keys are properly exposed in your environment

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Dependencies

  • Version Compatibility
    • Issue: Unexpected behavior or type errors
    • Solution: Ensure compatible versions: 
      {
  "dependencies": {
    "@coinbase/onchainkit": "latest",
    "viem": "^2.0.0",
    "@wagmi/core": "^2.0.0"
  }
}

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Provider Configuration

  • Missing OnchainKitProvider
    • Error: “OnchainKit context not found”
    • Solution: Wrap your app with OnchainKitProvider and configure properly:
    import { OnchainKitProvider } from '@coinbase/onchainkit';
import { base } from 'viem/chains';

export default function App({ children }) {
  return (
    <OnchainKitProvider
      apiKey={process.env.NEXT_PUBLIC_CDP_API_KEY}
      chain={base}
    >
      {children}
    </OnchainKitProvider>
  );
}

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Wallet Connection

  • Connection Failed
    • Error: “Unable to connect wallet”
    • Solutions:
      • Verify wallet extension is installed and unlocked
      • Check supported chains configuration
      • Ensure proper network selection in wallet
      • Verify RPC endpoints are accessible
  • Chain Switching Issues
    • Error: “Failed to switch chain”
    • Solutions:
      • Verify chain ID is supported by OnchainKit
      • Check wallet has required permissions
      • Ensure RPC endpoints are configured correctly
      • Add chain to wallet if not already added

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Transaction Issues

  • Gas Estimation Failed
    • Error: “Gas estimation failed”
    • Solutions:
      • Verify sufficient balance for gas
      • Check transaction parameters are valid
      • Ensure proper network configuration

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Identity Components

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Theme Issues

  • Dark Mode Not Working
    • Error: “Dark mode styles not applying”
    • Solution: Configure Tailwind and OnchainKit properly:
    // tailwind.config.js
module.exports = {
  darkMode: ['class'],
  safelist: ['dark'],
  // ... rest of config
}

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React Native

  • ** React Native Support **
    • OnchainKit’s components are not supported for use in React Native, however, you can use utility functions, like getName, as well as some hooks in your React Native app. When using these utility functions, you may need to import them directly rather than through the export file.
    • Example: import { getName } from '@coinbase/onchainkit/esm/identity/utils/getName.js'; rather than import { getName } from '@coinbase/onchainkit/identity;

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Module Resolution

  • Module Resolution Errors
    • Error: “Cannot find module … or its corresponding type declarations. Consider updating to ‘node16’, ‘nodenext’, or ‘bundler’”
    • Solution: Update your Node.js version or use a compatible bundler. We recommend using Node 18+ and "moduleResolution": "NodeNext" for the best developer experience. OnchainKit supports only ES Modules and does not support CommonJS modules.

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Getting Help

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