No matching variant of project

文章讲述了在Android开发中遇到的一个问题,即Gradle无法确定某个任务的依赖,因为引用的库项目(library)缺少特定渠道的资源。解决方案包括在library中复制model的渠道名称,使用matchingFallbacks属性来指定兼容的构建类型,如将debug和release添加到matchingFallbacks列表中。

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问题描述

Could not determine the dependencies of task ‘:app:compileXXXXX JavaWithJavac’.
Could not resolve all task dependencies for configuration ‘:app:XXXXX CompileClasspath’.
Could not resolve project :library_xxx.
Required by:
project :app
No matching variant of project :library_xxxx was found. The consumer was configured to find an API of a component, as well as attribute ‘com.android.build.api.attributes.BuildTypeAttr’ with value ‘xxxx’, attribute ‘sign’ with value ‘xxxxxx’ but:
- Variant ‘debugApiElements’ capability VendingMachine:library_xxxx:unspecified declares an API of a component:
- …

以上xxxx均为屏蔽项目名称,请自行代入

发生这类问题的原因就是:model中有不同的渠道资源,引入的依赖包(library) 并没有这些渠道

两种方式解决

  1. 在library中将model中的渠道名称复制过去,{} 中的内容可为空,只需要将渠道名字复制过去例如:A{}
  2. 在model中的渠道包下面使用matchingFallbacks,library默认是debug,如果有release 也可添加release例 A{ matchingFallbacks = ['release', 'debug'] }:
Could not resolve all files for configuration ':classpath'. > Could not resolve com.android.tools.build:gradle:7.4.1. Required by: project : > No matching variant of com.android.tools.build:gradle:7.4.1 was found. The consumer was configured to find a runtime of a library compatible with Java 8, packaged as a jar, and its dependencies declared externally, as well as attribute 'org.gradle.plugin.api-version' with value '7.5' but: - Variant 'apiElements' capability com.android.tools.build:gradle:7.4.1 declares a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares an API of a component compatible with Java 11 and the consumer needed a runtime of a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'javadocElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'runtimeElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a library, packaged as a jar, and its dependencies declared externally: - Incompatible because this component declares a component compatible with Java 11 and the consumer needed a component compatible with Java 8 - Other compatible attribute: - Doesn't say anything about org.gradle.plugin.api-version (required '7.5') - Variant 'sourcesElements' capability com.android.tools.build:gradle:7.4.1 declares a runtime of a component, and its dependencies declared externally: - Incompatible because this component declares documentation and the consumer needed a library - Other compatible attributes: - Doesn't say anything about its target Java version (required compatibility with Java 8) - Doesn't say anything about its elements (required them packaged as a jar) - Doesn't say anything about org.gradle.plugin.api-version (required '7.5')这个问题是什么意思,要怎么解决 中文回答
06-10
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