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[A] Oracle.ManagedDataAccess.Client.OracleParameter无法强制转换为[B] Oracle.ManagedDataAccess.Client.OracleParameter

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运行我的代码以从Oracle DB获取数据时,我遇到以下错误 .

[A] Oracle.ManagedDataAccess.Client.OracleParameter无法强制转换为[B] Oracle.ManagedDataAccess.Client.OracleParameter . 类型A源自'Oracle.ManagedDataAccess,Version = 4.122.18.3,Culture = neutral,PublicKeyToken = 89b483f429c47342'在上下文'LoadFrom'位置'd:\ Users \ mukadfar \ AppData \ Local \ Temp \ Temporary ASP.NET Files \ VS \ 02d43168 \ 78988466 \组件\ DL3 \ 95159e45 \ 00d2c436_a83bd401 \ Oracle.ManagedDataAccess.dll” . 类型B源自'Oracle.ManagedDataAccess,Version = 4.122.1.0,Culture = neutral,PublicKeyToken = 89b483f429c47342'在上下文'Default'位置'd:\ Users \ mukadfar \ AppData \ Local \ Temp \ Temporary ASP.NET Files \ VS \ 02d43168 \ 78988466 \组件\ DL3 \ 0b972c52 \ 00ac59cd_7dd5d201 \ Oracle.ManagedDataAccess.dll” .

这是我的相同代码:

var param1 = "K60";
                var param2 = "2018.09.14";
                var param3 = "2018.09.14";
                var param4 = string.Empty;
                var param5 = string.Empty;
                var param6 = string.Empty;
                var param7 = string.Empty;
                var param8 = string.Empty;
                var param9 = string.Empty;
                var param10 = string.Empty;
                var param11 = string.Empty;
                var param12 = string.Empty;
                var param13 = string.Empty;
                var param14 = string.Empty;
                var param15 = string.Empty;
                var param16 = string.Empty;
                var param17 = string.Empty;
                var param18 = string.Empty;
                var parameters = new[]
                {
                    new OracleParameter("wr_proccode_PM_cmb_C179", OracleDbType.Varchar2, 100, param1 != null ? (object)param1 : DBNull.Value, ParameterDirection.Input),
                    new OracleParameter("wr_start_day_C179", OracleDbType.Varchar2, 100, param2 != null ? (object)param2 : DBNull.Value, ParameterDirection.Input),
                    new OracleParameter("wr_end_day_C179", OracleDbType.Varchar2, 100, param1 != null ? (object)param3 : DBNull.Value, ParameterDirection.Input),
                    new OracleParameter("wr_operating_efficiency_total", OracleDbType.Decimal, 4000, param4 != null ? (object)param4 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_time_efficiency", OracleDbType.Decimal, 4000, param5 != null ? (object)param5 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_tons_efficiency_total", OracleDbType.Decimal, 4000, param6 != null ? (object)param6 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_pope_gross", OracleDbType.Decimal, 4000, param7 != null ? (object)param7 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_packed_net_prod", OracleDbType.Decimal, 4000, param8 != null ? (object)param8 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_bottom_waste", OracleDbType.Decimal, 4000, param9 != null ? (object)param9 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_avg_gm2", OracleDbType.Decimal, 4000, param10 != null ? (object)param10 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_unplanned_shutdown_pcs", OracleDbType.Int32, 4000, param11 != null ? (object)param11 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_grade_change_pcs", OracleDbType.Int32, 4000, param12 != null ? (object)param12 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_break_pcs", OracleDbType.Int32, 4000, param13 != null ? (object)param13 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_break_hr", OracleDbType.Varchar2, 4000, param14 != null ? (object)param14 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_unplanned_shutdown_hr", OracleDbType.Varchar2, 4000, param15 != null ? (object)param15 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_packed_net_prod_pcs", OracleDbType.Int32, 4000, param16 != null ? (object)param16 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_rewinder_net_prod_pcs", OracleDbType.Decimal, 4000, param17 != null ? (object)param17 : DBNull.Value, ParameterDirection.InputOutput),
                    new OracleParameter("wr_warehouse_post_waste", OracleDbType.Decimal, 4000, param18 != null ? (object)param18 : DBNull.Value, ParameterDirection.InputOutput)
                };

                var procedure = $"Begin TP_BALELINE.getNextPlannedObjects(:wr_proccode_PM_cmb_C179, :wr_start_day_C179, :wr_end_day_C179, :wr_operating_efficiency_total, :wr_time_efficiency, :wr_tons_efficiency_total, :wr_pope_gross, :wr_packed_net_prod, :wr_bottom_waste, :wr_avg_gm2, :wr_unplanned_shutdown_pcs, :wr_grade_change_pcs, :wr_break_pcs, :wr_break_hr, :wr_unplanned_shutdown_hr, :wr_packed_net_prod_pcs, :wr_rewinder_net_prod_pcs, :wr_warehouse_post_waste); END;";

                this.databaseContext.ExecuteSqlCommand(
                procedure,
                parameters[0],
                parameters[1],
                parameters[2],
                parameters[3],
                parameters[4],
                parameters[5],
                parameters[6],
                parameters[7],
                parameters[8],
                parameters[9],
                parameters[10],
                parameters[11],
                parameters[12],

在ExecuteSqlCommand行上获取错误 .

1 回答

  • 3

    您需要的所有详细信息都在错误消息中,这是一个缩短和强调的版本:

    [A] Oracle.ManagedDataAccess.Client.OracleParameter无法强制转换为[B] Oracle.ManagedDataAccess.Client.OracleParameter . 类型A源自'Oracle.ManagedDataAccess,Version = 4.122.18.3,(剪切一些文本)类型B源自'Oracle.ManagedDataAccess,Version = 4.122.1.0,Culture = neutral,(snip)

    所以这里的问题是你有两个不同的副本和版本 Oracle.ManagedDataAccess ,你在它们之间混合类型 .

    类型的完全限定名称不仅仅是文本,它还包含包含它的程序集的完整版本和签名,因此即使这两种类型可能是100%完全相同的源代码,甚至是编译方式,它们来自两个不同版本的组件这一事实使它们不兼容 .

    你要做的是弄清楚两个程序集的引用位置,找出你想要使用的程序集,并更正其他引用,以便它们都引用相同版本的程序集 .

    这应该会使错误消失 .

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