我正在从事一个目前已经建成并可以运行的项目。但是当我尝试将指纹从设备插入数据库表时出现问题。让我写它之前工作得很好。但是当我设置一台新计算机或将项目移动到新环境中时，它会引发异常：
由于以下错误，检索具有 CLSID {00853A19-BD51-419B-9269-2DABE57EB61F} 的组件的 COM 类工厂失败：80040154 未注册类（来自 HRESULT 的异常：0x80040154 (REGDB_E_CLASSNOTREG)）。
这是一个使用ZkemKeeper的指纹考勤系统，项目附带dll文件。这是代码片段：
/**This is a list of the users from database that uses fingerprint system - Starts**/
List<AttMachineBO> lstfrom = new List<AttMachineBO>();
for (int i = 0; i < dgv_Machine.Rows.Count; i++)
{
if (dgv_Machine.Rows[i].Cells[0].Value == null)
{
dgv_Machine.Rows[i].Cells[0].Value = false;
}
if ((bool)dgv_Machine.Rows[i].Cells[0].Value == true)
{
AttMachineBO obj = new AttMachineBO();
obj.Mechine_No = dgv_Machine.Rows[i].Cells[1].Value.ToString();
obj.Machine_Name = dgv_Machine.Rows[i].Cells[2].Value.ToString();
obj.IP_Address = dgv_Machine.Rows[i].Cells[3].Value.ToString().Trim();
lstfrom.Add(obj);
}
}
/**This is a list of the users from database that uses fingerprint system - Ends**/
基本上上面的代码是从分配了IP地址的表中加载用户详细信息，点击后，指纹数据将从考勤设备（ZKTeco i-clock 580）插入到数据库表中。对于插入数据，使用以下代码：
if (lstfrom.Count > 0)
{
for (int x = 0; x < lstfrom.Count; x++)
{
/Here the exception starts/
**zkemkeeper.CZKEMClass fromM = new zkemkeeper.CZKEMClass();**
lblStatus.Text = "Connect To Device " + lstfrom[x].Machine_Name + " , IP=" + lstfrom[x].IP_Address + ".....";
lblStatus.Refresh();
if (fromM.Connect_Net(lstfrom[x].IP_Address, 4370))
{
lblStatus.Text = "Register The Device To PC";
lblStatus.Refresh();
if (fromM.RegEvent(fromM.MachineNumber, 65535))
{
lblStatus.Text = "Reading All Data From Machine";
lblStatus.Refresh();
fromM.ReadAllTemplate(fromM.MachineNumber);
List<AttMachineBO> datalst = new List<AttMachineBO>();
string empId = "", name = "", fingerprintData = "", fingerprintData2 = "", password = ""; ;
int prev = 0, TmpLength = 0;
bool isEnable = false;
int k = 0;
while (fromM.SSR_GetAllUserInfo(fromM.MachineNumber, out empId, out name, out password, out prev, out isEnable))
{
lblStatus.Text = "Processing Employee with ID=" + empId + ", Name =" + name;
lblStatus.Refresh();
AttMachineBO bo = new AttMachineBO();
bo.EMP_ID = empId;
bo.EMP_Name = name;
bo.IsfingerSaa = true;
bo.IP_Address = lstfrom[x].IP_Address;
bo.Com_Id = HRMS.MAIN.HRMS.Company;
bool f = fromM.SSR_GetUserTmpStr(fromM.MachineNumber, empId, 0, out fingerprintData, out TmpLength);
bo.finger1 = fingerprintData != null ? fingerprintData : "";
f = fromM.SSR_GetUserTmpStr(fromM.MachineNumber, empId, 1, out fingerprintData, out TmpLength);
bo.finger2 = fingerprintData != null ? fingerprintData : "";
datalst.Add(bo);
}
bool flag = Facede.Attendance.InserDatabase(datalst);
if (flag)
{
MessageBox.Show("Insert Successfully.");
return;
}
else
{
MessageBox.Show("Error In Insert.");
return;
}
}
else
{
lblStatus.Text = "Device registration failed.";
lblStatus.Refresh();
}
}
else
{
lblStatus.Text = "Failed to stablish connecting to device =" + lstfrom[x].Machine_Name + ", IP =" + lstfrom[x].IP_Address + "...."; ;
lblStatus.Refresh();
}
}
}
我已经在异常开始的代码（第二代码部分）中突出显示，并且有点困惑如何解决它。