“最低支持的Gradle版本是4.4”错误从今天开始;没有代码改变 [英] "Minimum supported Gradle version is 4.4" error started today; no code changes

问题描述

  *其中： 
构建文件'C：\dev\src\my_app_name\app\build.gradle'行：1 
 
 *出错：
发生了问题评估项目'：app'。 
>无法应用插件[id'com.android.application'] 
>最小支持的Gradle版本是4.4。当前版本是4.1。如果使用gradle包装器，请尝试编辑C：\dev\src\my_app_name\gradle\wrapper\gradle-wrapper.properties中的distributionUrl到gradle-4.4-all.zip 
  

绝对不会进行任何代码或配置更改; Gradle构建突然开始失败。任何人都知道为什么会发生？我最好的猜测是一个插件依赖于特定版本的Gradle自动更新自己，但我不知道如何确定它是哪一个。行号表明它是 com.application.plugin 插件本身。

我知道Android Studio更新通常需要相应升级到Gradle，但我的团队中没有人更新Android Studio。并且，根据Android-Studio-Gradle 版本兼容性表，Gradle 4.1仍然可以正常运行Android Studio 3.0.1，这是我运行了一段时间。

我们最近开始使用Kotlin，而我认为这可能是问题的一部分，但完全删除与Kotlin相关的所有内容并没有帮助。

我试过删除Gradle caches / 目录，运行 ./ gradlew cleanBuildCache ，删除我们的项目的 build / 目录，杀死Gradle守护进程通过 ./ gradlew --stop ，并重新启动 - 一切都无济于事。

我也试过升级到Gradle 4.4，但在DexMergerTransform（单独的问题）中导致了CIRCULAR REFERENCENullPointerException错误，原因是entir对我不明确。我希望能够迫使我的环境现在不承担Gradle 4.4依赖关系......但我不知道是什么突然引发了这种依赖关系。

解决方案

问题原来是因为我们使用了非特定版本的插件。当插件发生变化时，新版本被下载到我们的开发环境中，并且它引入了对Gradle版本的依赖性，高于我们使用的版本。

<在我们的例子中，这是罪魁祸首：

classpath'com.jakewharton：butterknife-gradle-plugin：9.0.0-SNAPSHOT'

降级到Butterknife插件的8.5.1版本，消除了对Gradle 4.4的依赖。

Today, multiple developers on my team started seeing this error when they attempt to run any Gradle task.

* Where:
Build file 'C:\dev\src\my_app_name\app\build.gradle' line: 1

* What went wrong:
A problem occurred evaluating project ':app'.
> Failed to apply plugin [id 'com.android.application']
   > Minimum supported Gradle version is 4.4. Current version is 4.1. If using the gradle wrapper, try editing the distributionUrl in C:\dev\src\my_app_name\gradle\wrapper\gradle-wrapper.properties to gradle-4.4-all.zip

Absolutely no code or config changes were made; Gradle builds just suddenly started to fail. Anyone know why this would happen? My best guess is that a plugin with a dependency on a specific version of Gradle auto-updated itself, but I'm not sure how to figure out which one it is. The line number would suggest that it was the com.application.plugin plugin itself.

I am aware that Android Studio updates often require a corresponding upgrade to Gradle, but nobody on my team updated Android Studio. And, according to the Android-Studio-Gradle version compatibility table, Gradle 4.1 should still work fine with Android Studio 3.0.1, which is what I have been running for some time.

We recently started using Kotlin, and I thought that might be part of the problem, but completely removing everything related to Kotlin didn't help.

I have tried deleting the Gradle caches/ directory, running ./gradlew cleanBuildCache, deleting our project's build/ directories, killing Gradle daemons via ./gradlew --stop, and rebooting -- all to no avail.

I also tried upgrading to Gradle 4.4, but that resulted in a "CIRCULAR REFERENCE" NullPointerException error during DexMergerTransform (separate issue), for reasons that are entirely unclear to me. I'd like to be able to force my environment to NOT take on a Gradle 4.4 dependency right now... but I don't know what suddenly triggered this dependency.

解决方案

The problem turned out to be that we were using a non-specific version of a plugin. When a change was made to the plugin, the new version was downloaded to our dev environments, and it introduced a dependency on a version of Gradle higher than the one we were using.

In our case, this was the culprit:

classpath 'com.jakewharton:butterknife-gradle-plugin:9.0.0-SNAPSHOT'

Downgrading to version 8.5.1 of the Butterknife plugin eliminated the dependency on Gradle 4.4.

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