Gradle spring boot 2 spring-boot-dependencies cannot download dependencies - spring-boot

Question

I am using eclipse 2018, gradle 5.2.1, buildship 3.0.1.
My config looks like:
I try to create spring boot 2 according to building-spring-boot-2-projects-with-gradle
The build.gradle is:
plugins {
id 'java'
id 'com.gradle.build-scan' version '2.1'
id 'org.springframework.boot' version '2.1.3.RELEASE'
}
repositories {
jCenter()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-dependencies:2.1.3.RELEASE'
implementation 'org.springframework.boot:spring-boot-starter-web'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
components {
withModule('org.springframework:spring-beans') {
allVariants {
withDependencyConstraints {
// Need to patch constraints because snakeyaml is an optional dependency
it.findAll { it.name == 'snakeyaml' }.each { it.version { strictly '1.23' } }
}
}
}
}
}
buildScan {
// always accept the terms of service
termsOfServiceUrl = 'https://gradle.com/terms-of-service'
termsOfServiceAgree = 'yes'
// always publish a build scan
publishAlways()
}
bootJar {
mainClassName = 'gt4.App'
}
However, after I save build.gradle, the Project and External Dependencies disappear, and the spring boot jars are not downloaded too.
What I was wrong?
If I create spring boot project with gradle by Spring Tool Suite 4, the generated build.gradle is:
plugins {
id 'org.springframework.boot' version '2.1.3.RELEASE'
id 'java'
}
apply plugin: 'io.spring.dependency-management'
group = 'com.example'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'
repositories {
mavenCentral()
}
dependencies {
implementation 'org.springframework.boot:spring-boot-starter'
testImplementation 'org.springframework.boot:spring-boot-starter-test'
}
then it works.
Do I use spring-boot-dependencies wrong?

Answer 1

try to deleting the local Repository and build project again to download dependancy.
Delete .m2 or .gradle folder and then Rebuild your project.
a)On a Windows machine, the .gradle or .m2 path will be:
c:\Users\username\.m2 or c:\Users\username\.m2
b)On linux machine, the .gradle or .m2 path will be:
USER_HOME/.m2/