ORA-06550：第1行第7列：PLS-00201：标识符异常

Question

以下是程序和代码。即使签名相同，我也会收到错误ORA-06550

程序prc_MediaProSchExport（c_ResultSet OUT t_Cursor，                                 vChas IN Varchar2，                                 vTXS IN日期，                                 vTXE IN日期，                                 vSch IN Varchar2                                 ）

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        OracleParameter oParam = new OracleParameter("c_ResultSet", OracleDbType.RefCursor);
        oParam.Direction = ParameterDirection.ReturnValue;
        parameterList[0] = oParam;

        OracleParameter oParam1 = new OracleParameter("VARI", OracleDbType.Varchar2);
        oParam1.Direction = ParameterDirection.Input;
        parameterList[1] = oParam1;

        DateTime gmtDateTime = DateTime.Parse(DateTime.Today.ToShortDateString());


        OracleParameter oParam2 = new OracleParameter(gmtDateTime.ToString(), OracleDbType.Date);
        oParam2.Direction = ParameterDirection.Input;
        parameterList[2] = oParam2;

        OracleParameter oParam3 = new OracleParameter(gmtDateTime.ToString(), OracleDbType.Date);
        oParam3.Direction = ParameterDirection.Input;
        parameterList[3] = oParam3;

        OracleParameter oParam4 = new OracleParameter("ABCD", OracleDbType.Varchar2);
        oParam4.Direction = ParameterDirection.Input;
        parameterList[4] = oParam4;