在Android Studio项目中包含OpenCV会产生“未解决的依赖项”错误

Question

我正在尝试使用此分步指南将OpenCV包含在我的Android Studio项目中。但是，在将OpenCV添加为模块依赖项（指南中的第4步）后，Gradle项目同步失败并出现以下错误：

ERROR: Unable to resolve dependency for ':app@debug/compileClasspath': Could not resolve project :openCVLibrary410.
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Affected Modules: app


ERROR: Unable to resolve dependency for ':app@debugAndroidTest/compileClasspath': Could not resolve project :openCVLibrary410.
Show Details
Affected Modules: app


ERROR: Unable to resolve dependency for ':app@debugUnitTest/compileClasspath': Could not resolve project :openCVLibrary410.
Show Details
Affected Modules: app

我发现了这个相关的问题，并尝试在openCV构建中调整构建类型。gradle添加了一个调试字段，但它没有改变任何东西。我还试着调整应用程序的构建。渐变如下

    buildTypes {
        release {
            ...
        }
        debug {
            matchingFallbacks = ['release']
        }
    }

（还有几个稍有不同的版本，因为我不完全确定我在那里做了什么），但没有任何帮助。我还尝试将OpenCV库的构建变体设置为release而不是debug，但这导致了以下错误：

Unable to find a matching variant of project :openCVLibrary410:
  - Variant 'debugApiElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
      - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found incompatible value 'Apk'.
      - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
  - Variant 'debugBundleElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' but no value provided.
      - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but no value provided.
      - Required org.gradle.usage 'java-api' and found incompatible value 'android-bundle'.
  - Variant 'debugMetadataElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
      - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found incompatible value 'Metadata'.
      - Required org.gradle.usage 'java-api' but no value provided.
  - Variant 'debugRuntimeElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'debug'.
      - Found com.android.build.api.attributes.VariantAttr 'debug' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found incompatible value 'Apk'.
      - Required org.gradle.usage 'java-api' and found incompatible value 'java-runtime'.
  - Variant 'releaseApiElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'release'.
      - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found incompatible value 'Apk'.
      - Required org.gradle.usage 'java-api' and found compatible value 'java-api'.
  - Variant 'releaseBundleElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' but no value provided.
      - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' but no value provided.
      - Required org.gradle.usage 'java-api' and found incompatible value 'android-bundle'.
  - Variant 'releaseMetadataElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'release'.
      - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found incompatible value 'Metadata'.
      - Required org.gradle.usage 'java-api' but no value provided.
  - Variant 'releaseRuntimeElements':
      - Required com.android.build.api.attributes.BuildTypeAttr 'debug' and found compatible value 'release'.
      - Found com.android.build.api.attributes.VariantAttr 'release' but wasn't required.
      - Required com.android.build.gradle.internal.dependency.AndroidTypeAttr 'Aar' and found incompatible value 'Apk'.
      - Required org.gradle.usage 'java-api' and found incompatible value 'java-runtime'.

知道如何解决这个问题吗？

Answer 1

导入版本3.4.6比最新版本稍旧。最新版本可能还不稳定。

在我的环境中也出现了相同的症状，但使用版本3.4.6解决了。

Answer 2

我终于通过改变线路解决了这个问题

应用插件：'com.android.application'

在导入的OpenCV模块的build.gradle文件中

应用插件：'com.android.library'

并删除同一gradle文件中的defaultConfig字段。我在这里找到了这个解决方案。