爲什麼「依賴關係」命令爲只有一個依賴關係的空項目JUnit返回一些「FAILED」結果？

Question

我有一個build.gradle這樣的：

apply plugin: 'java' 

dependencies{ 
    compile 'junit:junit:4.12' 
} 

，當我運行gradle dependencies我得到：

------------------------------------------------------------ 
Root project 
------------------------------------------------------------ 

apiElements - API elements for main. (n) 
No dependencies 

archives - Configuration for archive artifacts. 
No dependencies 

compile - Dependencies for source set 'main' (deprecated, use 'implementation ' instead). 
\--- junit:junit:4.12 FAILED 

compileClasspath - Compile classpath for source set 'main'. 
\--- junit:junit:4.12 FAILED 

compileOnly - Compile only dependencies for source set 'main'. 
No dependencies 

default - Configuration for default artifacts. 
\--- junit:junit:4.12 FAILED 

implementation - Implementation only dependencies for source set 'main'. (n) 
No dependencies 

runtime - Runtime dependencies for source set 'main' (deprecated, use 'runtimeOnly ' instead). 
\--- junit:junit:4.12 FAILED 

runtimeClasspath - Runtime classpath of source set 'main'. 
\--- junit:junit:4.12 FAILED 

runtimeElements - Elements of runtime for main. (n) 
No dependencies 

runtimeOnly - Runtime only dependencies for source set 'main'. (n) 
No dependencies 

testCompile - Dependencies for source set 'test' (deprecated, use 'testImplementation ' instead). 
\--- junit:junit:4.12 FAILED 

testCompileClasspath - Compile classpath for source set 'test'. 
\--- junit:junit:4.12 FAILED 

testCompileOnly - Compile only dependencies for source set 'test'. 
No dependencies 

testImplementation - Implementation only dependencies for source set 'test'. (n) 
No dependencies 

testRuntime - Runtime dependencies for source set 'test' (deprecated, use 'testRuntimeOnly ' instead). 
\--- junit:junit:4.12 FAILED 

testRuntimeClasspath - Runtime classpath of source set 'test'. 
\--- junit:junit:4.12 FAILED 

testRuntimeOnly - Runtime only dependencies for source set 'test'. (n) 
No dependencies 

爲何會出現在失敗依賴呢？ 什麼是已棄用，請使用'執行'而不是是什麼意思？

我也用過：

testImplementation 'junit:junit:4.12' 

但相同的命令返回仍然失敗部分：testCompileClasspath和testRuntimeClasspath。

這是怎麼發生的？

Answer 1

如果您還沒有定義repositories塊gradle將打印依賴關係並將其標記爲FAILED，因爲它尚未正確解析（沒有放置已定義的可從何處獲取依賴關係）。

說到compile vs implementation請看看here。