我已經(jīng)使用 Spring Tool Suite 啟動了一個 Gradle 項(xiàng)目。按照本教程：https : //spring.io/guides/gs/gradle/ 它表明我應(yīng)該在我的 build.gradle 文件中添加 org.joda 依賴項(xiàng)，在類中導(dǎo)入依賴項(xiàng)，構(gòu)建包，然后它應(yīng)該可以使用。但是，當(dāng)我這樣做并重新構(gòu)建項(xiàng)目并運(yùn)行它時，出現(xiàn)錯誤：Exception in thread "main" java.lang.Error: Unresolved compilation problems:     LocalTime cannot be resolved to a type    LocalTime cannot be resolved to a type    at firstGradleProject.HelloWorld.main(HelloWorld.java:7)我的依賴項(xiàng)似乎已正確設(shè)置：dependencies {    compile('org.springframework.boot:spring-boot-starter')    testCompile('org.springframework.boot:spring-boot-starter-test')    compile('joda-time:joda-time:2.2')    testCompile('junit:junit:4.12')}如何在我的 Gradle Spring 項(xiàng)目中導(dǎo)入這個依賴項(xiàng)并讓它編譯？我的整個 build.gradle 文件看起來像：buildscript {    ext {        springBootVersion = '2.0.4.RELEASE'    }    repositories {        mavenCentral()    }    dependencies {        classpath("org.springframework.boot:spring-boot-gradle-plugin:${springBootVersion}")    }}apply plugin: 'java'apply plugin: 'eclipse'apply plugin: 'org.springframework.boot'apply plugin: 'io.spring.dependency-management'group = 'com.example'version = '0.0.1-SNAPSHOT'sourceCompatibility = 1.8targetCompatibility = 1.8jar {    baseName = 'gs-gradle'    version =  '0.1.0'}repositories {    mavenCentral()}dependencies {    compile('org.springframework.boot:spring-boot-starter')    testCompile('org.springframework.boot:spring-boot-starter-test')    compile('joda-time:joda-time:2.2')    testCompile('junit:junit:4.12')}