ADO数据库Command错误3105

用ADO连接数据库，使用Command时，会出现IDispatch error#3105的错误
try
{
_ConnectionPtr pConnection=NULL;

pConnection.CreateInstance(_uuidof(Connection));

pConnection->Mode=adModeUnknown;
pConnection->ConnectionTimeout=5;

pConnection->ConnectionString=_T("Data Source=127.0.0.1;Provider=SQLOLEDB.1;Initial Catalog=自行车");
HRESULT hr= pConnection->Open(_T(""), _T("zxf"),_T("1234"), adModeUnknown);
if(FAILED(hr))
{

pConnection->Close();
AfxMessageBox("连接失败了");
return ;
}
_CommandPtr pCommand=NULL;
pCommand.CreateInstance(_uuidof(Command));
pCommand->ActiveConnection=pConnection;
pCommand->CommandText=_T("insert into 类型 ([ID]) values(?)");
pConnection->CommandTimeout=5;
_ParameterPtr pParam1=pCommand->CreateParameter(_bstr_t("ID"),adBSTR,adParamInput,m_ID.GetLength(),_variant_t(m_ID));
pCommand->Parameters->Append(pParam1);
pCommand->Execute(NULL,NULL,adCmdUnknown);
if(pConnection->State)
{
pConnection->Close();
pConnection=NULL;
}
}
catch(_com_error &e)
{
AfxMessageBox(e.ErrorMessage());
}
}

单步调试下，看看哪行报错
pConnection->ConnectionString=_T("Data Source=127.0.0.1;Provider=SQLOLEDB.1;Initial Catalog=自行车");
怀疑是这行，你的连接不正确