我做了世界上最简单的 simulink 模型，它将两个常数相加并将结果发送到输出端口。我将它导出到 fmu 模型并尝试在 pyfmi 中运行它。
我收到 FMUException 错误：模拟失败。有关更多信息，请参阅日志。返回标志 3
日志显示 ['FMIL: module = FMILIB, log level = 5: Allocating FMIL context', 'FMIL: module = FMILIB, log level = 5: Parsing model description XML', 'FMIL: module = FMI2XML, log level = 5 : 解析 XML 元素 fmiModelDescription', 'FMIL: module = FMI2XML, log level = 5: Parsing XML element CoSimulation', 'FMIL: module = FMI2XML, log level = 5: Parsing XML element VendorAnnotations', 'FMIL: module = FMI2XML, log level = 5: Parsing XML element ModelVariables', 'FMIL: module = FMI2XML, log level = 4: [Line:31] Detected during parsing:', 'FMIL: module = FMI2XML, log level = 2: start attribute is required对于这种因果关系、可变性和初始组合'，'FMIL：模块 = FMI2XML，日志级别 = 5：建筑别名索引'，'FMIL：模块 = FMI2XML，日志级别 = 5：解析 XML 元素 ModelStructure', 'FMIL: module = FMI2XML, log level = 5: Parsing XML element Outputs', 'FMIL: module = FMI2XML, log level = 5: Parsing XML element InitialUnknowns', 'FMIL: module = FMILIB, log level = 5: 解析成功完成', "FMIL: module = FMILIB, log level = 4: Loading 'linux64' binary with 'default' platform types", 'FMIL: module = FMICAPI, log level = 5: Loaded FMU binary from /tmp/bruce/JModelica.org/jm_tmp9uvk5t3l/binaries/linux64/simple_sum2const.so', 'FMIL: module = FMICAPI, log level = 5: Loading functions for the co-simulation interface', 'FMIL: module = FMILIB, log level = 5: 成功加载所有接口函数', 'FMIL: module = FMI2XML, log level = 3: fmi2_xml_get_default_experiment_tolerance:返回默认值，因为在 modelDescription 中未定义任何属性', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2SetupExperiment', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2EnterInitializationMode', 'FMIL: module = FMICAPI, 日志级别 = 5: 调用 fmi2ExitInitializationMode', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:0, value:5.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:1, value:0.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] CommunicationStepSize=0.02, LocalSolverStepSize= 0.2', 'FMIL: module = Model, log level = 2: [error][FMU status:Error] Stepsize 必须是非负数并且可以被 0.2 整除', 'FMIL: module = Model, log level = 4: [info ][FMU状态：OK] CommunicationStepSize=1, LocalSolverStepSize=0.2', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] Local Solver will do 5 step from t = 0.', 'FMIL: module = FMI2XML，日志级别 = 3：fmi2_xml_get_default_experiment_tolerance：返回默认值，因为没有在 modelDescription 中定义属性'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2SetupExperiment'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2EnterInitializationMode', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2ExitInitializationMode', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:0, value:5.000000' , 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:1, value:0.000000', 'FMIL: module = Model, log level = 4: [info][FMU status ：OK] CommunicationStepSize=0.02, LocalSolverStepSize=0.2', 'FMIL: module = Model, log level = 2: [error][FMU status:Error] Stepsize 必须是非负数且可被 0.2 整除', 'FMIL: module = FMICAPI , 日志级别 = 5: 调用 fmi2SetupExperiment', 'FMIL: 模块 = FMI2XML, 日志级别 = 3: fmi2_xml_get_default_experiment_tolerance: 返回默认值，因为模型描述中没有定义属性', 'FMIL: 模块 = FMICAPI, 日志级别 = 5: 调用fmi2SetupExperiment', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2EnterInitializationMode', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2ExitInitializationMode', 'FMIL: module = Model, log level = 4: [info] [FMU status:OK] getReal vr:0, value:5.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:1,value:0.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] CommunicationStepSize=0.02, LocalSolverStepSize=0.2', 'FMIL: module = Model, log level = 2: [error] [FMU 状态：错误] 步长必须为非负且可被 0.2 整除'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2EnterInitializationMode'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2ExitInitializationMode'， 'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2EnterInitializationMode'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2ExitInitializationMode'，'FMIL：模块 = FMI2XML，日志级别 = 3：fmi2_xml_get_default_experiment_tolerance：返回默认值，因为没有在 modelDescription 中定义属性'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2SetupExperiment'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2EnterInitializationMode'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2ExitInitializationMode'，'FMIL：模块 = 模型，日志级别 = 4：[信息][FMU 状态:OK] getReal vr:0, value:5.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:1, value:0.000000', 'FMIL: module = Model , 日志级别 = 4: [info][FMU status:OK] CommunicationStepSize=0.02, LocalSolverStepSize=0.2', 'FMIL: module = Model, log level = 2: [error][FMU status:Error] Stepsize 必须是非负数且可被 0.2 整除'，'FMIL：模块 = FMI2XML，日志级别 = 3：fmi2_xml_get_default_experiment_tolerance：返回默认值，因为模型描述中没有定义属性'，'FMIL：模块 = FMICAPI，日志级别 = 5：调用 fmi2SetupExperiment', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2EnterInitializationMode', 'FMIL: module = FMICAPI, log level = 5: Calling fmi2ExitInitializationMode', 'FMIL: module = Model, log level = 4: [info ][FMU status:OK] getReal vr:0, value:5.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] getReal vr:1, value:0.000000', 'FMIL ：模块 = 模型，日志级别 = 4：[信息][FMU 状态：OK] CommunicationStepSize=0.004，LocalSolverStepSize=0.2'，'FMIL：模块 = 模型，日志级别 = 2：[错误][FMU 状态：错误]步长必须是非负数且可被 0.2' 整除]日志级别 = 4：[信息][FMU 状态：OK] getReal vr：0，值：5.000000'，'FMIL：模块 = 型号，日志级别 = 4：[信息][FMU 状态：OK] getReal vr：1， value:0.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] CommunicationStepSize=0.004, LocalSolverStepSize=0.2', 'FMIL: module = Model, log level = 2: [error] [FMU status:Error] Stepsize 必须是非负数且可被 0.2' 整除]日志级别 = 4：[信息][FMU 状态：OK] getReal vr：0，值：5.000000'，'FMIL：模块 = 型号，日志级别 = 4：[信息][FMU 状态：OK] getReal vr：1， value:0.000000', 'FMIL: module = Model, log level = 4: [info][FMU status:OK] CommunicationStepSize=0.004, LocalSolverStepSize=0.2', 'FMIL: module = Model, log level = 2: [error] [FMU status:Error] Stepsize 必须是非负数且可被 0.2' 整除]
我找不到有关如何设置步长或应该是什么的任何信息。我试过 model.do_step(0, 1.0) model.initialize(0, 0.1, True)
model.simulate_options() 显示 {'ncp': 500, 'initialize': True, 'stop_time_defined': False, 'write_scaled_result': False, 'result_file_name': '', 'result_handling': 'binary', 'result_handler':无，'result_store_variable_description'：真，'return_result'：真，'time_limit'：无，'过滤器'：无，'silent_mode'：假}
我怎样才能让这个简单的演示工作？