Troubleshooting ‘node_modules is not recognized as an internal or external command’ Error

Troubleshooting 'node_modules is not recognized as an internal or external command' Error

5 April 2024 Stephan Petzl Leave a comment Tech-Help

When working on test automation scripts with tools like Appium, Jasmine, and Perfecto Mobile, developers may encounter a common issue where the ‘node_modules’ directory is not recognized as a command. This problem often arises during the execution of the ‘npm test’ command.

Understanding the Issue

The error message ‘node_modules is not recognized as an internal or external command’ typically indicates that the system cannot locate the executable file within the ‘node_modules’ directory. This can happen when the path specified in the ‘package.json’ file is incorrect or not properly formatted.

Correcting the Script Path in package.json

In your ‘package.json’ file, you might have a scripts section that looks like this:

{
    "scripts": {
        "test": "node_modules/webdriverio/bin/wdio wdio.conf.js",
        "start": "wdio wdio.conf.js"
    }
}
        

To resolve the error, you need to adjust the path to the executable file. Here’s how you can correct it:

Method 1: Providing a Relative Path

Modify the ‘test’ script to include a relative path that points to the correct location of the ‘wdio’ executable within the ‘node_modules’ directory:

{
    "scripts": {
        "test": "node ./node_modules/webdriverio/bin/wdio wdio.conf.js",
        "start": "wdio wdio.conf.js"
    }
}
        

With this change, you’re explicitly telling the system to execute the ‘wdio’ command from the ‘node_modules’ directory using ‘node’.

Method 2: Simplifying the Command

Alternatively, you can simplify the command by removing the path to the ‘node_modules’ directory entirely, as ‘npm’ scripts are already configured to look for executables in the ‘node_modules/.bin’ directory:

{
    "scripts": {
        "test": "wdio wdio.conf.js",
        "start": "wdio wdio.conf.js"
    }
}
        

After making the necessary adjustments to your ‘package.json’ file, you should be able to run your test script without encountering the ‘node_modules is not recognized’ error.

Conclusion

When setting up automation scripts, a minor misconfiguration in the ‘package.json’ file can lead to errors that halt your progress. By ensuring that your script paths are correctly specified, you can avoid common pitfalls and maintain a smooth development workflow. If you encounter similar issues in the future, remember to verify the paths in your ‘package.json’ scripts for accuracy and clarity.

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