.NET8 MAUI集成BarcodeScanner.Mobile.Maui遇ArrayMapKt重复定义编译错误

构建基于.NET8的MAUI条码扫描应用，集成GoogleVision的BarcodeScanner.Mobile.Maui（8.0.0.1）库时出现编译失败。错误提示androidx.collection.ArrayMapKt类型在两个NuGet包的Jar文件中重复定义：分别来自xamarin.androidx.collection.jvm 1.3.0.2和xamarin.androidx.collection.ktx 1.2.0.9。已尝试Stack Overflow上类似问题的解决方案但无效。

错误详情 #

Severity  Code    Description Project File    Line    Suppression State   Details
Error JAVA0000    Error in
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class:
Type androidx.collection.ArrayMapKt is defined multiple times:
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class,
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.ktx\1.2.0.9\buildTransitive\net6.0-android31.0....\jar\androidx.collection.collection-ktx.jar:androidx/collection/ArrayMapKt.class
Compilation failed java.lang.RuntimeException:
com.android.tools.r8.CompilationFailedException: Compilation failed to
complete, origin:
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar
androidx/collection/ArrayMapKt.class  at
com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:126)   at
com.android.tools.r8.D8.main(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:5)
Caused by: com.android.tools.r8.CompilationFailedException:
Compilation failed to complete, origin:
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class
at Version.fakeStackEntry(Version_8.1.56.java:0)    at
com.android.tools.r8.M.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:5)
at
com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:81)
at
com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:32)
at
com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:31)
at
com.android.tools.r8.utils.R0.b(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:2)
at
com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:26)
at
com.android.tools.r8.D8.b(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:13)
at
com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:24)
at
com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:113)   ... 1 more Caused by: com.android.tools.r8.utils.b: Type
androidx.collection.ArrayMapKt is defined multiple times:
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.jvm\1.3.0.2\buildTransitive\net7.0-android33.0....\jar\androidx.collection.collection-jvm.jar:androidx/collection/ArrayMapKt.class,
C:\Users\UserX.nuget\packages\xamarin.androidx.collection.ktx\1.2.0.9\buildTransitive\net6.0-android31.0....\jar\androidx.collection.collection-ktx.jar:androidx/collection/ArrayMapKt.class
at
com.android.tools.r8.utils.O2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:21)
at
com.android.tools.r8.utils.O2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:26)
at
com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:44)
at
com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:10)
at
java.base/java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:2056)
at
com.android.tools.r8.utils.A2.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:6)
at
com.android.tools.r8.graph.b4$a.e(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:7)
at
com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:58)
at
com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:9)
at
com.android.tools.r8.dex.c.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:8)
at
com.android.tools.r8.D8.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:29)
at
com.android.tools.r8.D8.d(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:17)
at
com.android.tools.r8.D8.c(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:1)
at
com.android.tools.r8.utils.R0.a(R8_8.1.56_756d1f50f618dd1c39c000f11defb367a21e9e866e3401b884be16c0950f6f79:28)
... 6 more  GoogleVision        1

解决方案尝试 #

• 统一依赖版本：在项目的.csproj文件中添加以下配置，锁定xamarin.androidx.collection相关包的统一版本（建议选择兼容.NET8的最新稳定版）：

<ItemGroup>
  <PackageReference Include="xamarin.androidx.collection.jvm" Version="1.3.0.3" />
  <PackageReference Include="xamarin.androidx.collection.ktx" Version="1.3.0.3" />
</ItemGroup>

• 排除冲突包：修改BarcodeScanner.Mobile.Maui的引用配置，排除其中一个冲突的依赖包：

<PackageReference Include="BarcodeScanner.Mobile.Maui" Version="8.0.0.1">
  <ExcludePackageReferences>
    <ExcludePackageReference>xamarin.androidx.collection.ktx</ExcludePackageReference>
  </ExcludePackageReferences>
</PackageReference>

• 清理NuGet缓存并还原：执行以下命令清理本地NuGet缓存，重新还原项目依赖：

dotnet nuget locals all --clear
dotnet restore

• 更新MAUI SDK：确保.NET 8 MAUI SDK已更新至最新稳定版，修复已知的兼容性问题。

内容的提问来源于stack exchange，提问作者Val