c# - 对类型 'Component' 的引用声称它在 'System' 中定义

Question

尝试在 UWP 应用程序中获取一些 WMI 对象。在 .net 4.6 上运行 VS2015。

我收到 ForEach 和方法调用的错误，指出“对类型‘组件’的引用声称它在‘系统’中定义”，错误为 CS7069。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Management;

namespace SystemInfo
{
    class wmiObject
    {
        static osDetails Program()
        {

            ManagementObjectCollection osDetailsCollection = getWMIObject("SELECT OSType, caption FROM Win32_OperatingSystem");
            osDetails Details = new osDetails();

            foreach (ManagementObject mo in osDetailsCollection)
            {
                Details.OSName = mo["Caption"].ToString();

            }

            osDetailsCollection = getWMIObject("SELECT Description, NumberOfLogicalProcessors, L3CacheSize from Win32_Processor");

            foreach (ManagementObject mo in osDetailsCollection)
            {
                Details.NumberOfLogicalProcessors = mo["NumberOfLogicalProcessors"].ToString();
                Details.L3CacheSize = mo["L3CacheSize"].ToString();
                Details.Description = mo["Description"].ToString();

            }
            ;

            return Details;
        }

        static ManagementObjectCollection getWMIObject(string query)
        {
            ManagementObjectSearcher objOSDetails = new ManagementObjectSearcher(query);
            ManagementObjectCollection osDetailsCollection = objOSDetails.Get();
            return osDetailsCollection;

        }

        class osDetails
        {
            public string Description;
            public string OSName;
            public string NumberOfLogicalProcessors;
            public string L3CacheSize;
        }

    }


}

错误

Severity    Code    Description Project File    Line
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   41
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   18
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   20
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   26
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   28
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   29
Error   CS7069  Reference to type 'Component' claims it is defined in 'System', but it could not be found   SystemInfo  C:\Users\Luke\Documents\GitHub\lgDns\lgDns\SystemInfo\SystemInfo\osDetails.cs   30

如有任何帮助，我们将不胜感激。

Answer 1

我刚遇到这个问题，我找到的解决方案是将项目重新制作为 C# WindowsFormsApp。它自动添加了引用:

C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\Microsoft.CSharp.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Core.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Data.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Data.DataSetExtensions.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Deployment.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Drawing.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Net.Http.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Windows.Forms.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Xml.dll
C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\.NETFramework\v4.5.2\System.Xml.Linq.dll

希望这能帮助别人。