Solving the fileSystemModule Not Found Error in NativeScript

Discover how to fix the 'fileSystemModule' error in NativeScript and learn to write to local files seamlessly.
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This video is based on the question https://stackoverflow.com/q/68469012/ asked by the user 'Frank Nicklin' ( https://stackoverflow.com/u/5348068/ ) and on the answer https://stackoverflow.com/a/68479876/ provided by the user 'William Juan' ( https://stackoverflow.com/u/10280206/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Solve the fileSystemModule Not Found Error in NativeScript

If you’ve ever encountered the error stating that 'fileSystemModule' was not found in '@ nativescript/core', you’re not alone. This issue can be particularly frustrating if you’re trying to write to a local file in Android while working with NativeScript. However, there’s good news! The import paths have changed in the latest versions of NativeScript, making your coding experience smoother and more intuitive. In this guide, we’ll explore how to solve this error and successfully write to local files using NativeScript in simple steps.

Understanding the Problem

The crux of the issue arises from the fact that previous import paths for accessing file system modules in NativeScript have been updated. If you’re using NativeScript version 8.0.2 or any later versions, the legacy import statement you might be familiar with will no longer work. Here’s a quick overview of the steps we’ll take to resolve the error:

Identify the correct import paths for the file system

Demonstrate how to write to a local file in Android using these paths

Step 1: Correct Import Paths

In the older versions of NativeScript, developers would import the fileSystemModule like this:

[[See Video to Reveal this Text or Code Snippet]]

With the updated version, you should now use the following import statement instead:

[[See Video to Reveal this Text or Code Snippet]]

By utilizing knownFolders, File, and Folder, you can seamlessly interact with the file system without encountering errors.

Step 2: Writing to a Local File

Now that we have the correct import paths, let’s look at how to write to a local file step by step. Below are the code snippets you will need:

Writing to the Documents Folder

Here is a simple function demonstrating how to write text to a file located in the documents folder:

[[See Video to Reveal this Text or Code Snippet]]

In this example:

Replace "FOLDER_NAME" with the name of your target folder.

Replace "FILE_NAME.txt" with your desired file name.

Replace "SOME_STRING_TO_WRITE_TO_FILE" with the actual string content you want to save.

Writing to External Storage

If you need to write to a more accessible location on Android, you can modify your function as follows:

[[See Video to Reveal this Text or Code Snippet]]

This allows you to write to external storage, ensuring the file can be accessed by other applications on the device.

Conclusion

By following the updated import paths and the provided code snippets, you can now bypass the 'fileSystemModule' was not found in '@ nativescript/core' error and successfully write to local files in your NativeScript applications. It's essential to stay updated with the latest documentation and best practices, as they can significantly streamline your development process.

Feel free to leave comments or ask questions if you need further clarity on writing to files with NativeScript. Happy coding!

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