Are you encountering an ExecJS::RuntimeError when trying to follow a Ruby tutorial on your Windows system? Don't worry; we've got you covered with some helpful tips to resolve this issue and get you back on track with your programming journey.
The ExecJS::RuntimeError is a common error that occurs when the ExecJS runtime encounters an issue while trying to execute JavaScript code within a Ruby on Rails application. This error can be frustrating, especially when you're eager to dive into learning Ruby. But fear not, there are a few steps you can take to troubleshoot and fix this error on your Windows machine.
One common reason for the ExecJS::RuntimeError on Windows is the absence of a JavaScript runtime environment. To resolve this issue, you'll need to ensure that a JavaScript runtime such as Node.js is properly configured on your system. Node.js provides a runtime environment that allows ExecJS to execute JavaScript code seamlessly within your Ruby applications.
To install Node.js on your Windows system, head over to the official Node.js website and download the Windows installer. Run the installer and follow the on-screen instructions to complete the installation process. Once Node.js is installed, be sure to restart your command prompt or terminal to apply the changes.
After installing Node.js, you'll need to set it as the default JavaScript runtime for your Rails application. You can do this by updating your Gemfile to include the 'therubyracer' or 'mini_racer' gem. These gems provide a bridge between Ruby and JavaScript, allowing ExecJS to use Node.js as the runtime environment.
To update your Gemfile, open it in a text editor and add one of the following lines:
gem 'therubyracer'
# or
gem 'mini_racer'Save the Gemfile and run `bundle install` in your command prompt or terminal to install the gem. This will configure ExecJS to use Node.js as the default JavaScript runtime for your Ruby on Rails application.
Once you've completed these steps, restart your Rails server and try running your application again. The ExecJS::RuntimeError should now be resolved, and you should be able to follow your Ruby tutorial without any further issues.
In conclusion, resolving the ExecJS::RuntimeError on Windows when following a Ruby tutorial is a matter of ensuring that a JavaScript runtime environment like Node.js is correctly set up on your system. By following the steps outlined in this article, you can overcome this error and continue your coding journey with confidence.
We hope this article has been helpful in guiding you through the process of fixing the ExecJS::RuntimeError. Happy coding!