我试图运行一些Android测试,但编译器抱怨存在多个dex文件.

Multiple dex files define Lorg/hamcrest/MatcherAssert;

所以我试图过滤重复的依赖项：$./gradlew -q依赖关系应用程序：依赖关系 – 配置androidTestCompile

但是我得到以下输出：

------------------------------------------------------------

Project :app

------------------------------------------------------------

androidTestCompile - Classpath for compiling the androidTest sources.

+--- org.mockito:mockito-core:1.9.5

| +--- org.hamcrest:hamcrest-core:1.1 -> 1.3

| \--- org.objenesis:objenesis:1.0 -> 2.1

+--- com.google.dexmaker:dexmaker-mockito:1.2

| +--- com.google.dexmaker:dexmaker:1.2

| \--- org.mockito:mockito-core:1.9.5 (*)

+--- com.android.support.test.espresso:espresso-core:2.0

| +--- com.squareup:javawriter:2.1.1

| +--- org.hamcrest:hamcrest-integration:1.1

| | \--- org.hamcrest:hamcrest-core:1.1 -> 1.3

| +--- org.hamcrest:hamcrest-library:1.1

| | \--- org.hamcrest:hamcrest-core:1.1 -> 1.3

| +--- javax.inject:javax.inject:1

| +--- com.android.support.test.espresso:espresso-idling-resource:2.0

| +--- com.android.support.test:testing-support-lib:0.1

| | \--- junit:junit-dep:4.10

| | \--- org.hamcrest:hamcrest-core:1.1 -> 1.3

| +--- com.google.code.findbugs:jsr305:2.0.1

| +--- javax.annotation:javax.annotation-api:1.2

| \--- org.hamcrest:hamcrest-core:1.1 -> 1.3

+--- com.android.support.test:testing-support-lib:0.1 (*)

+--- org.powermock:powermock-module-junit4:1.5.6

| +--- junit:junit:4.11

| | \--- org.hamcrest:hamcrest-core:1.3

| \--- org.powermock:powermock-module-junit4-common:1.5.6

| +--- junit:junit:4.4 -> 4.11 (*)

| +--- org.powermock:powermock-core:1.5.6

| | +--- org.powermock:powermock-reflect:1.5.6

| | | \--- org.objenesis:objenesis:2.1

| | \--- org.javassist:javassist:3.18.2-GA

| \--- org.powermock:powermock-reflect:1.5.6 (*)

\--- org.powermock:powermock-api-mockito:1.5.6

\--- org.powermock:powermock-api-support:1.5.6

+--- org.powermock:powermock-core:1.5.6 (*)

\--- org.powermock:powermock-reflect:1.5.6 (*)

(*) - dependencies omitted (listed previously)

我对箭头( – >)的含义感到困惑.他们的意思是什么？