How to Fix the Keystore File Not Found Error When Building an App Bundle in Flutter

Learn how to resolve the 'Keystore File Not Found' error in Flutter when building an app bundle using Android Studio. This guide addresses common causes and solutions.
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When building an app bundle in Flutter, encountering errors is not uncommon. One specific error that developers might face is the 'Keystore File Not Found' error, often accompanied by the message:

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This guide aims to guide you through the process of identifying and resolving this error, ensuring a smoother build process for your Flutter app.

Understanding the Error

This error typically arises from issues related to the app's signing configuration. In Flutter, Android apps need to be signed with a keystore before they can be released. If the system cannot locate the keystore file, the build process will fail, hence the 'Keystore File Not Found' error.

Common Causes

Several reasons can lead to this error:

Missing Keystore File: The keystore file itself is absent from the specified directory.

File Access Permissions: The system lacks the necessary permissions to access the keystore file.

Steps to Resolve

Step 1: Verify Keystore File Presence

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Make sure:

The storeFile path is correct.

The file extension and case sensitivity are accurate.

Step 3: Check File Permissions

Ensure that the keystore file has the appropriate read permissions required by the system to access it. Modify the file permissions as necessary, depending on your operating system.

Step 4: Relative Path Issues

Consider whether you’re using an absolute or relative path for the storeFile. If necessary, adjust the path format:

Absolute Path:

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Relative Path (from the project's root directory):

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Conclusion

If you continue to encounter issues, consider examining log files for further clues or consulting with the Flutter community for support.