System.Configuration.dll中发生类型'System.Configuration.ConfigurationErrorsException'的未处理异常

Question

最近几天，我试图在c＃中的应用程序控制台中创建用户密码，但是我无法生成文件密码。

我最终跟随this tutoriel，最终能够创建secret.xml。但是，当我尝试从secret.xml文件读取数据时，它给了我这个错误：

Thrown exception: 'System.Configuration.ConfigurationErrorsException' in System.Configuration.dll
An unhandled exception of type 'System.Configuration.ConfigurationErrorsException' occurred in System.Configuration.dll
An error occurred while loading a configuration file: Unable to load the file or assembly 'Microsoft.Configuration.ConfigurationBuilders.UserSecrets, Version = 1.0.0.0, Culture = neutral' or one of its dependencies. The specified file can not be found.

[起初，我能够从配置文件中读取密码数据，但是当我尝试从机密文件中读取密码数据时，似乎并不麻烦。

尝试解决的方法：-删除了对UserSecrets的引用，然后使用Nuget再次添加了它。

这是我的代码：click here

App.config：

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="configBuilders" type="System.Configuration.ConfigurationBuildersSection, System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" restartOnExternalChanges="false" requirePermission="false"/>
    </configSections>
    <configBuilders>
        <builders>
          <add name="Secrets" userSecretsFile="c:\\secrets\\secret.xml" type="Microsoft.Configuration.ConfigurationBuilders.UserSecretsConfigBuilder, Microsoft.Configuration.ConfigurationBuilders.UserSecrets, Version=1.0.0.0, Culture=neutral"/>
        </builders>
      </configBuilders>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.6.1"/>
    </startup>
  <appSettings configBuilders="Secrets">
    <add key="password" value="This is a password placeholder"/>
  </appSettings>
</configuration>

Program.cs：

static void Main(string[] args)
        {
            var password = ConfigurationManager.AppSettings["password"];
            Console.WriteLine($"Password is {password}");
        }

Answer 1

根据我的测试，我找到了解决方案。您可以尝试更改当前的.net框架

版本4.7.1或更高版本。

单击属性->选择目标框架->选择.net Framework 4.7.2

类似以下内容：

然后，您可以参考我测试的app.config。

<?xml version="1.0" encoding="utf-8"?>
<configuration>
    <configSections>
        <section name="configBuilders" type="System.Configuration.ConfigurationBuildersSection, System.Configuration, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a" restartOnExternalChanges="false" requirePermission="false"/>
    </configSections>
    <configBuilders>
        <builders>
        <add name="Secrets" userSecretsFile="D:\\secrets.xml" type="Microsoft.Configuration.ConfigurationBuilders.UserSecretsConfigBuilder, Microsoft.Configuration.ConfigurationBuilders.UserSecrets, Version=2.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35"/></builders>
    </configBuilders>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.7.2"/>
    </startup>
  <appSettings configBuilders="Secrets">
    <add key="password" value="This is a password placeholder"/>
  </appSettings>
  <runtime>
    <assemblyBinding xmlns="urn:schemas-microsoft-com:asm.v1">
      <dependentAssembly>
        <assemblyIdentity name="Microsoft.Configuration.ConfigurationBuilders.Base" publicKeyToken="31bf3856ad364e35" culture="neutral"/>
        <bindingRedirect oldVersion="0.0.0.0-2.0.0.0" newVersion="2.0.0.0"/>
      </dependentAssembly>
    </assemblyBinding>
  </runtime>
</configuration>

您可以知道.net框架已更改为v4.7.2.。

最后，我可以从控制台应用程序中获得正确的结果。