How to Fix the package org.springframework.boot does not exist Error in Spring Boot Applications

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Understanding the Error

The error message typically looks something like this:

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This means that your project is unable to find the Spring Boot libraries it needs to compile your application.

Common Causes

Missing Dependencies: Your project might not include the necessary Spring Boot dependencies.

Incorrect Configuration: The project might not be configured correctly to manage its dependencies.

Step-by-Step Solution

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After adding the dependencies, update your Maven project (Right-click on the project > Maven > Reimport).

Verify IntelliJ IDEA Settings

Sometimes, the issue could be specific to your IntelliJ IDEA configuration.

Re-import the project: In IntelliJ IDEA, right-click your project and choose Maven > Reimport.

Invalidate Caches / Restart: Go to File > Invalidate Caches / Restart and select Invalidate and Restart.

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After making these changes, run ./gradlew build to download the dependencies.

Check Your JDK Version

Ensure that you're using a compatible version of the JDK that matches the Spring Boot version in your project. Sometimes, using an outdated JDK can lead to such errors.

Conclusion