志不强者智不达，言不信者行不果。这篇文章主要讲述在SQL连接期间Xamarin Android应用程序中缺少dll System.Net.Security.Native相关的知识，希望能为你提供帮助。
在广泛搜索该dll的任何参考之后，我来这里寻求帮助。
我正在尝试建立与承载我的PC的SQL Server数据库的连接（我知道这不是最佳实践，但决定不取决于我）。我已经将android设备通过其扩展坞/ USB连接到了我的PC，并且正在从Visual Studio 2019的设备中以调试模式运行代码。
代码编译并成功在设备上运行，直到我进行connection.Open()调用。到达那里后，我将获得多个DllNotFoundExceptions和一个SQLException，它们均引用此未找到的System.Net.Security.Native库。
我经历过NuGet添加的所有听起来像它们可能包含我要寻找的软件包的软件包，但到目前为止还算不上。我也尝试添加任何听起来相关的参考，但同样，什么也没有。
我也曾尝试添加using System.Net.Security.Native; ，但VS只是告诉我
ErrorCS0234The type or namespace name 'Native' does not exist in the namespace 'System.Net.Security' (are you missing an assembly reference?)
删除“ Native”也不能解决问题。
这里是“输出”窗格中的日志，以便您可以确切地看到它在寻找什么。

02-04 20:15:52.362 D/Mono(30702): DllImport attempting to load: 'System.Net.Security.Native'. 02-04 20:15:52.364 D/Mono(30702): DllImport error loading library './System.Net.Security.Native': 'dlopen failed: library "./System.Net.Security.Native" not found'. 02-04 20:15:52.364 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.365 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.365 D/Mono(30702): DllImport error loading library '/system/lib64/System.Net.Security.Native': '(null)'. 02-04 20:15:52.365 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.365 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.366 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.367 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.368 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.368 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.369 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native': 'dlopen failed: library "./libSystem.Net.Security.Native" not found'. 02-04 20:15:52.369 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.370 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.370 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native': '(null)'. 02-04 20:15:52.370 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.370 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.371 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.372 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.374 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.375 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.375 W/Mono(30702): DllImport unable to load library 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.375 D/Mono(30702): DllImport attempting to load: 'System.Net.Security.Native'. 02-04 20:15:52.376 D/Mono(30702): DllImport error loading library './System.Net.Security.Native': 'dlopen failed: library "./System.Net.Security.Native" not found'. 02-04 20:15:52.377 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.378 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.378 D/Mono(30702): DllImport error loading library '/system/lib64/System.Net.Security.Native': '(null)'. 02-04 20:15:52.378 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.378 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.379 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.380 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.381 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.382 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.383 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native': 'dlopen failed: library "./libSystem.Net.Security.Native" not found'. 02-04 20:15:52.383 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.383 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.384 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native': '(null)'. 02-04 20:15:52.384 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.384 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.385 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.386 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.386 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.387 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.387 W/Mono(30702): DllImport unable to load library 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.393 D/Mono(30702): DllImport attempting to load: 'System.Net.Security.Native'. 02-04 20:15:52.394 D/Mono(30702): DllImport error loading library './System.Net.Security.Native': 'dlopen failed: library "./System.Net.Security.Native" not found'. 02-04 20:15:52.394 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.395 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.395 D/Mono(30702): DllImport error loading library '/system/lib64/System.Net.Security.Native': '(null)'. 02-04 20:15:52.395 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.395 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.396 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.396 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.397 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.398 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.398 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native': 'dlopen failed: library "./libSystem.Net.Security.Native" not found'. 02-04 20:15:52.399 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.399 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.400 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native': '(null)'. 02-04 20:15:52.400 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.400 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.401 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.401 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.402 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.403 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.403 W/Mono(30702): DllImport unable to load library 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.403 D/Mono(30702): DllImport attempting to load: 'System.Net.Security.Native'. 02-04 20:15:52.404 D/Mono(30702): DllImport error loading library './System.Net.Security.Native': 'dlopen failed: library "./System.Net.Security.Native" not found'. 02-04 20:15:52.404 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.404 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.405 D/Mono(30702): DllImport error loading library '/system/lib64/System.Net.Security.Native': '(null)'. 02-04 20:15:52.405 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.405 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.405 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.406 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.406 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.407 D/Mono(30702): DllImport error loading library 'System.Net.Security.Native': 'dlopen failed: library "System.Net.Security.Native" not found'. 02-04 20:15:52.407 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native': 'dlopen failed: library "./libSystem.Net.Security.Native" not found'. 02-04 20:15:52.408 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.408 D/Mono(30702): DllImport error loading library './libSystem.Net.Security.Native.so': 'dlopen failed: library "./libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.408 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native': '(null)'. 02-04 20:15:52.408 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.409 D/Mono(30702): DllImport error loading library '/system/lib64/libSystem.Net.Security.Native.so': '(null)'. 02-04 20:15:52.410 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.411 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.413 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native.so': 'dlopen failed: library "libSystem.Net.Security.Native.so" not found'. 02-04 20:15:52.413 D/Mono(30702): DllImport error loading library 'libSystem.Net.Security.Native': 'dlopen failed: library "libSystem.Net.Security.Native" not found'. 02-04 20:15:52.413 W/Mono(30702): DllImport unable to load library 'dlopen failed: library "libSystem.Net.Security.Native" not found'. **System.DllNotFoundException:** 'System.Net.Security.Native assembly:< unknown assembly> type:< unknown type> member:(null)'

我还附上了我安装的软件包以及参考的屏幕截图。

文章图片


文章图片

我也收到此警告，但不确定是否与此相关。
XA5302: Two processes may be building this project at once. Lock file exists at path: C:UsersuserDocumentsDownloadsXamarinScannerAndroidXamarinScannerAndroidXamarinScannerAndroidobjDebug81.__lock
恐怕我已经用尽了所有的谷歌搜索功能。如果您还有其他需要（代码段/屏幕截图/等），请告诉我。谢谢！
编辑1：也添加了我的Android选项页面的屏幕截图，包括链接选项。

文章图片

答案【在SQL连接期间Xamarin Android应用程序中缺少dll System.Net.Security.Native】@zack-f，我没有找到您的解决方案，您能告诉我吗？我正在为同样的错误而苦苦挣扎。谢谢！

推荐阅读

• 

  坚果过期了还能吃吗
• 

  学校指导教师评语 指导教师评语简短
• 

  2023年物业管理师考试 物业管理师考试题库
• 

  飞利浦手机换屏幕维修多少钱
• 

  免费数据库管理软件 免费数据库mongodb
• 

  遇到林内热水器水压显示0怎么办,这些问题基本需要师傅了
• 

  空调要不要用auto 空调auto一直开着好吗
• 

  马桶胶开了漏水怎么办
• 

  Win10如何设置虚拟内存？Win10设置虚拟内存的方法
• 

  ufs3.1|跑分超73万！红米K40遇到对手，中端手机的价格，高端旗舰的性能
• 

  回力篮球鞋怎么样
• 

  hd7850，hd7850 什么档次的显卡
• 

  尼康D500套机相机屏幕碎了怎么修理
• 

  mysql安装57为什么直接让我更新 mysql安装5.7
• 

  10万毒贩对抗13万军队,美国给提供武器,墨西哥毒贩有多猖狂？
• 

  你知道明星最尴尬的事有哪些？
• 

  最大连续子数组的和
• 

  梦回大清在哪个台播出 下面为大家介绍相关情况
• 

  24小时开窗通风好吗
• 

  宝可梦剑盾紫光极巨化宝可梦速刷教学 紫光极巨化精灵怎么刷_网

• Android中的动画ProgressBar更新
• 如何将bottomAppBar放置在布局中
• 带有“ 307临时重定向”的Android VideoView播放URL
• Android Amazon S3文件上传不起作用
• BLE在Android上没有绑定的配对
• 使用create-react-app的其他HtmlWebpackPlugin（）页面
• Flutter Notification OneSignal-无法确定任务'（app：compileDebugJavaWithJavac'的依赖项）
• 用于App Service的地形名称“ xxx”必须是全局唯一的，并且不可用”
• 像webapp.to一样开发移动应用程序