类路径中已存在的插件的插件请求不得包含版本 [英] plugin request for plugin already on the classpath must not include a version
问题描述
我已经在网络上搜索了类路径上已经存在的插件的插件请求,不能包含版本site:stackoverflow.com",但没有发现任何特别的地方.搜索到在类路径中已存在的插件的插件请求,插件中不能包含版本"(没有SO): https: //discuss.gradle.org/t/error-plugin-already-on-the-classpath-must-not-include-a-version/31814 我在其中读过的答案例如:
I've done web search for "plugin request for plugin already on the classpath must not include a version site:stackoverflow.com" and found nothing that particular. Search for "plugin request for plugin already on the classpath must not include a version" (w/out SO) found: https://discuss.gradle.org/t/error-plugin-already-on-the-classpath-must-not-include-a-version/31814 where I've read in answers e.g.:
我没有在Grade插件中找到对此用例的任何引用 文档.
I didn’t find any reference to this use case in Grade plugins documentation.
错误
构建文件'/Users/username/github/OpCon/app/build.gradle' 行:4错误解析插件[id:'com.android.application', 版本:"3.4.1"]
Build file '/Users/username/github/OpCon/app/build.gradle' line: 4 Error resolving plugin [id: 'com.android.application', version: '3.4.1']
已在类路径中插入插件的插件请求不得包含版本
Plugin request for plugin already on the classpath must not include a version
出现在IntelliJ IDEA
的build.gradle(OpCon)中:
appears in IntelliJ IDEA
, build.gradle (OpCon):
buildscript {
repositories {
jcenter()
maven {
url 'https://maven.google.com/'
name 'Google'
}
google()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.5.2'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
mavenCentral()
maven { url "https://oss.sonatype.org/content/repositories/snapshots/" }
}
repositories {
jcenter()
maven {
url 'https://maven.google.com/'
name 'Google'
}
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
app/build.gradle
:
plugins {
id 'com.android.application' version '3.4.1' apply true
}
... and then other stuff
我不明白,类路径'com.android.tools.build:gradle:3.5.2'似乎不包含'com.android.application'... 如果在项目中搜索"classpath",则只会出现一次.
I don't understand, classpath 'com.android.tools.build:gradle:3.5.2' does not seem to include 'com.android.application'... "classpath" has only one occurrence if searched in the project.
已添加:
有趣地在 https://maven.google.com/web/index.html我可以找到"com.android.tools.build:gradle:3.5.2",但找不到"com.android.application"分支.
Interestingly on https://maven.google.com/web/index.html I can find 'com.android.tools.build:gradle:3.5.2' but no 'com.android.application' branch.
添加2: 我已经从此处下载的命令下载了(实际上由于某种原因下载了很多文件),
ADDED 2: I've downloaded (quite many files actually was downloaded for some reason) by command taken from here How can I download a specific Maven artifact in one command line?:
mvn org.apache.maven.plugins:maven-dependency-plugin:2.8:get -DrepoUrl='https://maven.google.com/' -Dartifact='com.android.tools.build:gradle:3.4.1'
在文件管理器中找到路径com.android.tools.build:gradle
,并仅在其中的jar中查看:
found path com.android.tools.build:gradle
in file manager and looked inside only jar there:
username$ jar tvf /Users/username/.m2/repository/com/android/tools/build/gradle/3.4.1/gradle-3.4.1.jar | grep application
1115 Wed May 01 20:30:18 MSK 2019 com/android/build/gradle/internal/tasks/ApplicationIdWriterTask$applicationIdSupplier$1.class
55 Wed May 01 20:29:18 MSK 2019 META-INF/gradle-plugins/com.android.application.properties
因此在jar META-INF
中提到了gradle plugin
com.android.application
.
So there is a mention gradle plugin
com.android.application
in jar META-INF
.
文件com.android.application.properties
是一种衬纸:implementation-class=com.android.build.gradle.AppPlugin
.
对实现类java"的Web搜索可找到有关接口的信息.在Wiki https://en.wikipedia.org/wiki/Interface_(Java):
Web search for "implementation class java" finds info on interfaces. In wiki https://en.wikipedia.org/wiki/Interface_(Java):
Java编程语言中的接口是一种抽象类型,它 用于指定类必须实现的行为.
An interface in the Java programming language is an abstract type that is used to specify a behavior that classes must implement.
那么gradle插件可能是一个接口?我该如何进一步挖掘?
So gradle plugin could be an interface? How can I dig in further?
推荐答案
我遇到了同样的问题,我在使用Spring Boot和插件,如下所示
I was facing same problem, I was using spring boot with plugins as follows
plugins {
id 'org.springframework.boot' version '2.2.0.RELEASE'
id 'io.spring.dependency-management' version '1.0.8.RELEASE'
id 'java'
id 'war'
}
由于此插件存在于一个依赖项中,因此gradle对此有所抱怨.我只是删除了那些依赖项,它就起作用了:
Since this plugin was present in one dependency gradle was complaining about it. I simply removed those dependencies and it worked:
plugins {
id 'java'
id 'war'
}
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