VSCode, Gradle, Spring Boot, Can't import javax.validation

Question

All.
I want to use @Valid and @NotEmpty in the spring boot(2.3.0) framework.
But I was unable to import javax.validation so I couldn't.
Here is the screen and build.gradle file I am currently experiencing:

1. Can't be used @Valid annotation
2. Can't be used @NotEmpty annotation

<File: build.gradle>

plugins {
    id 'org.springframework.boot' version '2.3.0.RELEASE'
    id 'io.spring.dependency-management' version '1.0.9.RELEASE'
    id 'java'
}

group = 'kr.co.fastcampus'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'

configurations {
    developmentOnly
    runtimeClasspath {
        extendsFrom developmentOnly
    }
    compileOnly {
        extendsFrom annotationProcessor
    }
}

repositories {
    mavenCentral()
}

dependencies {
    //  Spring Boot
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-validation'

    //  Database
    implementation 'com.h2database:h2'

    compileOnly 'org.projectlombok:lombok'

    developmentOnly 'org.springframework.boot:spring-boot-devtools'

    annotationProcessor 'org.projectlombok:lombok'

    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

test {
    useJUnitPlatform()
}

Answer 1

Might be problem with gradle cache.

Make sure you are using correct gradle version in gradle-wrapper.properties:

distributionUrl=https\://services.gradle.org/distributions/gradle-6.4.1-bin.zip

Then do a rebuild. Check if you are getting any errors during build. Everything should be green here:

I used the same build.gradle file (which you provided), both @Valid and @NonEmpty annotations are working fine.