Running: ./testmodel.py --libraries=/home/hudson/saved_omc/libraries/.openmodelica/libraries/ --ompython_omhome=/usr Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.conf.json loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo", uses=false) loadFile("/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo", uses=false) Using package Buildings with version 8.1.4 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo) Using package Modelica with version 3.2.3 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo) Using package Complex with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo) Using package ModelicaServices with version 4.0.0 (/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo) Running command: translateModel(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u") translateModel(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u,tolerance=1e-06,outputFormat="empty",numberOfIntervals=5000,variableFilter="",fileNamePrefix="Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u") Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/ModelicaServices 4.0.0+maint.om/package.mo): time 0.0008979/0.0008977, allocations: 92.16 kB / 16.02 MB, free: 80 kB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Complex 4.0.0+maint.om/package.mo): time 0.001555/0.001555, allocations: 173 kB / 16.92 MB, free: 6.652 MB / 14.72 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Modelica 3.2.3+maint.om/package.mo): time 1.941/1.941, allocations: 205.4 MB / 223.1 MB, free: 5.559 MB / 174.1 MB Notification: Performance of loadFile(/home/hudson/saved_omc/libraries/.openmodelica/libraries/Buildings 8.1.4-maint.8.1.x/package.mo): time 1.792/1.792, allocations: 292.7 MB / 0.5509 GB, free: 14.47 MB / 462.1 MB Notification: Modelica requested package Complex of version 3.2.3. Complex 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Modelica requested package ModelicaServices of version 3.2.3. ModelicaServices 4.0.0 is used instead which states that it is fully compatible without conversion script needed. Notification: Performance of FrontEnd - loaded program: time 0.0005387/0.0005387, allocations: 14.5 kB / 0.675 GB, free: 25.82 MB / 0.5294 GB Notification: Performance of FrontEnd - Absyn->SCode: time 0.3045/0.3051, allocations: 116.3 MB / 0.7885 GB, free: 11.59 MB / 0.6075 GB Notification: Performance of NFInst.instantiate(Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u): time 0.07042/0.3755, allocations: 65.42 MB / 0.8524 GB, free: 9.945 MB / 0.67 GB Notification: Performance of NFInst.instExpressions: time 0.0339/0.4095, allocations: 19.57 MB / 0.8715 GB, free: 6.34 MB / 0.6856 GB Notification: Performance of NFInst.updateImplicitVariability: time 0.004795/0.4144, allocations: 79.5 kB / 0.8716 GB, free: 6.262 MB / 0.6856 GB Notification: Performance of NFTyping.typeComponents: time 0.004411/0.4188, allocations: 1.026 MB / 0.8726 GB, free: 5.23 MB / 0.6856 GB Notification: Performance of NFTyping.typeBindings: time 0.01111/0.43, allocations: 2.426 MB / 0.875 GB, free: 2.797 MB / 0.6856 GB Notification: Performance of NFTyping.typeClassSections: time 0.01166/0.4416, allocations: 3.158 MB / 0.8781 GB, free: 15.67 MB / 0.7012 GB Notification: Performance of NFFlatten.flatten: time 0.01338/0.455, allocations: 6.978 MB / 0.8849 GB, free: 8.664 MB / 0.7012 GB Notification: Performance of NFFlatten.resolveConnections: time 0.004314/0.4594, allocations: 1.578 MB / 0.8864 GB, free: 7.031 MB / 0.7012 GB Notification: Performance of NFEvalConstants.evaluate: time 0.005609/0.465, allocations: 1.738 MB / 0.8881 GB, free: 5.285 MB / 0.7012 GB Notification: Performance of NFSimplifyModel.simplify: time 0.003194/0.4683, allocations: 1.431 MB / 0.8895 GB, free: 3.848 MB / 0.7012 GB Notification: Performance of NFPackage.collectConstants: time 0.0003431/0.4686, allocations: 72 kB / 0.8896 GB, free: 3.777 MB / 0.7012 GB Notification: Performance of NFFlatten.collectFunctions: time 0.004978/0.4736, allocations: 1.949 MB / 0.8915 GB, free: 1.824 MB / 0.7012 GB Notification: Performance of NFScalarize.scalarize: time 0.0006795/0.4743, allocations: 454 kB / 0.8919 GB, free: 1.379 MB / 0.7012 GB Notification: Performance of NFVerifyModel.verify: time 0.001667/0.476, allocations: 1.019 MB / 0.8929 GB, free: 356 kB / 0.7012 GB Notification: Performance of NFConvertDAE.convert: time 0.004489/0.4805, allocations: 2.771 MB / 0.8956 GB, free: 13.57 MB / 0.7169 GB Notification: Performance of FrontEnd - DAE generated: time 5.25e-06/0.4805, allocations: 0 / 0.8956 GB, free: 13.57 MB / 0.7169 GB Notification: Performance of FrontEnd: time 2.334e-06/0.4805, allocations: 0 / 0.8956 GB, free: 13.57 MB / 0.7169 GB Notification: Performance of Transformations before backend: time 2.785e-05/0.4806, allocations: 4 kB / 0.8956 GB, free: 13.57 MB / 0.7169 GB Notification: Model statistics after passing the front-end and creating the data structures used by the back-end: * Number of equations: 311 * Number of variables: 311 Notification: Performance of Generate backend data structure: time 0.004655/0.4852, allocations: 2.318 MB / 0.8979 GB, free: 11.18 MB / 0.7169 GB Notification: Performance of prepare preOptimizeDAE: time 4.562e-05/0.4853, allocations: 12.03 kB / 0.8979 GB, free: 11.16 MB / 0.7169 GB Notification: Performance of preOpt normalInlineFunction (simulation): time 0.001406/0.4867, allocations: 401.4 kB / 0.8983 GB, free: 10.77 MB / 0.7169 GB Notification: Performance of preOpt evaluateParameters (simulation): time 0.003269/0.49, allocations: 1.796 MB / 0.9 GB, free: 8.922 MB / 0.7169 GB Notification: Performance of preOpt simplifyIfEquations (simulation): time 0.0004042/0.4904, allocations: 166.4 kB / 0.9002 GB, free: 8.758 MB / 0.7169 GB Notification: Performance of preOpt expandDerOperator (simulation): time 0.0002104/0.4906, allocations: 136 kB / 0.9003 GB, free: 8.625 MB / 0.7169 GB Notification: Performance of preOpt clockPartitioning (simulation): time 0.002719/0.4933, allocations: 1.468 MB / 0.9017 GB, free: 7.066 MB / 0.7169 GB Notification: Performance of preOpt findStateOrder (simulation): time 3.519e-05/0.4934, allocations: 15.92 kB / 0.9018 GB, free: 7.051 MB / 0.7169 GB Notification: Performance of preOpt replaceEdgeChange (simulation): time 0.0001207/0.4935, allocations: 48 kB / 0.9018 GB, free: 7.004 MB / 0.7169 GB Notification: Performance of preOpt inlineArrayEqn (simulation): time 4.16e-05/0.4936, allocations: 35.94 kB / 0.9018 GB, free: 6.969 MB / 0.7169 GB Notification: Performance of preOpt removeEqualRHS (simulation): time 0.002473/0.496, allocations: 1.133 MB / 0.9029 GB, free: 5.828 MB / 0.7169 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of preOpt removeSimpleEquations (simulation): time 0.009542/0.5056, allocations: 7.338 MB / 0.9101 GB, free: 13.92 MB / 0.7325 GB Notification: Performance of preOpt comSubExp (simulation): time 0.002276/0.5079, allocations: 1.356 MB / 0.9114 GB, free: 12.45 MB / 0.7325 GB Notification: Performance of preOpt resolveLoops (simulation): time 0.0009611/0.5089, allocations: 447.2 kB / 0.9119 GB, free: 12.01 MB / 0.7325 GB Notification: Performance of preOpt evalFunc (simulation): time 0.003656/0.5125, allocations: 2.323 MB / 0.9141 GB, free: 9.461 MB / 0.7325 GB Notification: Performance of preOpt encapsulateWhenConditions (simulation): time 0.001077/0.5136, allocations: 0.491 MB / 0.9146 GB, free: 8.961 MB / 0.7325 GB Notification: Performance of preOpt simplifyInStream (simulation): time 0.0005554/0.5142, allocations: 79.34 kB / 0.9147 GB, free: 8.883 MB / 0.7325 GB Notification: Performance of pre-optimization done (n=67): time 2.615e-06/0.5142, allocations: 0 / 0.9147 GB, free: 8.883 MB / 0.7325 GB Notification: Performance of matching and sorting (n=67): time 0.003182/0.5174, allocations: 1.319 MB / 0.916 GB, free: 7.535 MB / 0.7325 GB Notification: Performance of inlineWhenForInitialization (initialization): time 7.607e-05/0.5175, allocations: 115.3 kB / 0.9161 GB, free: 7.398 MB / 0.7325 GB Notification: Performance of selectInitializationVariablesDAE (initialization): time 0.002023/0.5195, allocations: 1.481 MB / 0.9175 GB, free: 5.918 MB / 0.7325 GB Notification: Performance of collectPreVariables (initialization): time 8.16e-05/0.5196, allocations: 45.7 kB / 0.9176 GB, free: 5.867 MB / 0.7325 GB Notification: Performance of collectInitialEqns (initialization): time 0.0008258/0.5205, allocations: 0.892 MB / 0.9184 GB, free: 4.965 MB / 0.7325 GB Notification: Performance of collectInitialBindings (initialization): time 0.0002347/0.5207, allocations: 236.6 kB / 0.9187 GB, free: 4.73 MB / 0.7325 GB Notification: Performance of simplifyInitialFunctions (initialization): time 0.0001388/0.5208, allocations: 97.66 kB / 0.9188 GB, free: 4.629 MB / 0.7325 GB Notification: Performance of setup shared object (initialization): time 0.0001526/0.521, allocations: 349.9 kB / 0.9191 GB, free: 4.281 MB / 0.7325 GB Notification: Performance of preBalanceInitialSystem (initialization): time 0.0009645/0.522, allocations: 418.1 kB / 0.9195 GB, free: 3.871 MB / 0.7325 GB Notification: Performance of partitionIndependentBlocks (initialization): time 0.001207/0.5232, allocations: 0.7715 MB / 0.9203 GB, free: 2.941 MB / 0.7325 GB Notification: Performance of analyzeInitialSystem (initialization): time 0.002139/0.5253, allocations: 1.167 MB / 0.9214 GB, free: 1.645 MB / 0.7325 GB Notification: Performance of solveInitialSystemEqSystem (initialization): time 7.394e-06/0.5254, allocations: 4 kB / 0.9214 GB, free: 1.641 MB / 0.7325 GB Notification: Performance of matching and sorting (n=130) (initialization): time 0.002856/0.5282, allocations: 1.376 MB / 0.9227 GB, free: 252 kB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 0.5861/1.114, allocations: 388.4 kB / 0.9231 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 6.7e-05/1.114, allocations: 11.39 kB / 0.9231 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 5.114e-05/1.114, allocations: 18.5 kB / 0.9231 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.00145/1.116, allocations: 269.1 kB / 0.9234 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 3.795e-05/1.116, allocations: 20.94 kB / 0.9234 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001856/1.118, allocations: 146.5 kB / 0.9236 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001334/1.118, allocations: 54.31 kB / 0.9236 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of prepare postOptimizeDAE: time 1.383e-05/1.118, allocations: 6.406 kB / 0.9236 GB, free: 131.8 MB / 0.7325 GB Notification: Performance of postOpt replaceHomotopyWithSimplified (initialization): time 0.002989/1.121, allocations: 1.173 MB / 0.9248 GB, free: 131.7 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (initialization): time 2.372e-05/1.121, allocations: 11.67 kB / 0.9248 GB, free: 131.7 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (initialization): time 2.235e-05/1.121, allocations: 14.19 kB / 0.9248 GB, free: 131.7 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (initialization): time 0.001034/1.122, allocations: 269.2 kB / 0.925 GB, free: 131.7 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (initialization): time 2.399e-05/1.122, allocations: 20.81 kB / 0.9251 GB, free: 131.7 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (initialization): time 0.001649/1.124, allocations: 145.4 kB / 0.9252 GB, free: 131.7 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (initialization): time 0.0001137/1.124, allocations: 49.95 kB / 0.9252 GB, free: 131.7 MB / 0.7325 GB Notification: Model statistics after passing the back-end for initialization: * Number of independent subsystems: 41 * Number of states: 0 () * Number of discrete variables: 6 (TSet.count,$PRE.TSet.count,TSet.T_start,$PRE.TSet.T_start,$whenCondition1,conPI.I.trigger_internal) * Number of discrete states: 0 () * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for initialization (126): * Single equations (assignments): 122 * Array equations: 2 * Algorithm blocks: 1 * Record equations: 1 * When equations: 0 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 0 * Mixed (continuous/discrete) equation systems: 0 Notification: Performance of prepare postOptimizeDAE: time 0.001242/1.125, allocations: 0.4935 MB / 0.9257 GB, free: 131.5 MB / 0.7325 GB Notification: Performance of postOpt lateInlineFunction (simulation): time 0.0002994/1.125, allocations: 167.7 kB / 0.9259 GB, free: 131.5 MB / 0.7325 GB Notification: Performance of postOpt wrapFunctionCalls (simulation): time 0.002987/1.128, allocations: 1.146 MB / 0.927 GB, free: 131.4 MB / 0.7325 GB Notification: Performance of postOpt inlineArrayEqn (simulation): time 2.424e-05/1.129, allocations: 13 kB / 0.927 GB, free: 131.4 MB / 0.7325 GB Notification: Performance of postOpt constantLinearSystem (simulation): time 9.908e-06/1.129, allocations: 0.75 kB / 0.927 GB, free: 131.4 MB / 0.7325 GB Notification: Performance of postOpt simplifysemiLinear (simulation): time 0.002182/1.131, allocations: 0.8649 MB / 0.9279 GB, free: 131.3 MB / 0.7325 GB Warning: The model contains alias variables with redundant start and/or conflicting nominal values. It is recommended to resolve the conflicts, because otherwise the system could be hard to solve. To print the conflicting alias sets and the chosen candidates please use -d=aliasConflicts. Notification: Performance of postOpt removeSimpleEquations (simulation): time 0.00475/1.135, allocations: 2.493 MB / 0.9303 GB, free: 130.8 MB / 0.7325 GB Notification: Performance of postOpt simplifyComplexFunction (simulation): time 5.791e-06/1.136, allocations: 0 / 0.9303 GB, free: 130.8 MB / 0.7325 GB Notification: Performance of postOpt solveSimpleEquations (simulation): time 0.0007546/1.136, allocations: 164.7 kB / 0.9305 GB, free: 130.8 MB / 0.7325 GB Notification: Performance of postOpt tearingSystem (simulation): time 0.0001986/1.136, allocations: 39.56 kB / 0.9305 GB, free: 130.8 MB / 0.7325 GB Notification: Performance of postOpt inputDerivativesUsed (simulation): time 5.478e-05/1.137, allocations: 28.11 kB / 0.9305 GB, free: 130.8 MB / 0.7325 GB Notification: Performance of postOpt calculateStrongComponentJacobians (simulation): time 0.001016/1.138, allocations: 1.365 MB / 0.9319 GB, free: 129.5 MB / 0.7325 GB Notification: Performance of postOpt calculateStateSetsJacobians (simulation): time 3.697e-06/1.138, allocations: 7.875 kB / 0.9319 GB, free: 129.4 MB / 0.7325 GB Notification: Performance of postOpt symbolicJacobian (simulation): time 0.003305/1.141, allocations: 1.621 MB / 0.9334 GB, free: 128.9 MB / 0.7325 GB Notification: Performance of postOpt removeConstants (simulation): time 0.0007562/1.142, allocations: 341.9 kB / 0.9338 GB, free: 128.7 MB / 0.7325 GB Notification: Performance of postOpt simplifyTimeIndepFuncCalls (simulation): time 0.0001675/1.142, allocations: 27.08 kB / 0.9338 GB, free: 128.7 MB / 0.7325 GB Notification: Performance of postOpt simplifyAllExpressions (simulation): time 0.001063/1.143, allocations: 125.2 kB / 0.9339 GB, free: 128.7 MB / 0.7325 GB Notification: Performance of postOpt findZeroCrossings (simulation): time 0.0001498/1.143, allocations: 55.69 kB / 0.934 GB, free: 128.7 MB / 0.7325 GB Notification: Performance of postOpt collapseArrayExpressions (simulation): time 8.551e-05/1.143, allocations: 37.95 kB / 0.934 GB, free: 128.7 MB / 0.7325 GB Notification: Performance of sorting global known variables: time 0.00181/1.145, allocations: 0.9782 MB / 0.935 GB, free: 128.3 MB / 0.7325 GB Notification: Performance of sort global known variables: time 1.5e-07/1.145, allocations: 0 / 0.935 GB, free: 128.3 MB / 0.7325 GB Notification: Performance of remove unused functions: time 0.003154/1.148, allocations: 1.015 MB / 0.936 GB, free: 128.2 MB / 0.7325 GB Notification: Model statistics after passing the back-end for simulation: * Number of independent subsystems: 3 * Number of states: 6 (vol.dynBal.U,mov.filter.x[1],mov.filter.x[2],conPI.I.y,THeaOut.T,hea.vol.dynBal.U) * Number of discrete variables: 3 ($whenCondition1,TSet.T_start,TSet.count) * Number of discrete states: 1 (TSet.count) * Number of clocked states: 0 () * Top-level inputs: 0 Notification: Strong component statistics for simulation (75): * Single equations (assignments): 67 * Array equations: 0 * Algorithm blocks: 0 * Record equations: 5 * When equations: 2 * If-equations: 0 * Equation systems (not torn): 0 * Torn equation systems: 1 * Mixed (continuous/discrete) equation systems: 0 Notification: Torn system details for strict tearing set: * Linear torn systems (#iteration vars, #inner vars, density): 1 system {(1,2,100.0%)} * Non-linear torn systems (#iteration vars, #inner vars): 0 systems Notification: Performance of Backend phase and start with SimCode phase: time 0.001375/1.15, allocations: 0.5434 MB / 0.9365 GB, free: 128 MB / 0.7325 GB Notification: Performance of simCode: created initialization part: time 0.004123/1.154, allocations: 1.773 MB / 0.9382 GB, free: 127.4 MB / 0.7325 GB Notification: Performance of simCode: created event and clocks part: time 7.063e-06/1.154, allocations: 0.6875 kB / 0.9382 GB, free: 127.4 MB / 0.7325 GB Notification: Performance of simCode: created simulation system equations: time 0.001465/1.155, allocations: 0.5799 MB / 0.9388 GB, free: 127.1 MB / 0.7325 GB Notification: Performance of simCode: created of all other equations (e.g. parameter, nominal, assert, etc): time 0.004377/1.16, allocations: 0.7658 MB / 0.9395 GB, free: 127 MB / 0.7325 GB Notification: Performance of simCode: created linear, non-linear and system jacobian parts: time 0.008141/1.168, allocations: 4.022 MB / 0.9435 GB, free: 124.6 MB / 0.7325 GB Notification: Performance of simCode: some other stuff during SimCode phase: time 0.001495/1.169, allocations: 1.398 MB / 0.9448 GB, free: 123.8 MB / 0.7325 GB Notification: Performance of simCode: all other stuff during SimCode phase: time 0.0005951/1.17, allocations: 145.1 kB / 0.945 GB, free: 123.8 MB / 0.7325 GB Notification: Performance of SimCode: time 1.262e-06/1.17, allocations: 0 / 0.945 GB, free: 123.8 MB / 0.7325 GB Notification: Performance of Templates: time 0.06416/1.234, allocations: 34.39 MB / 0.9785 GB, free: 102.5 MB / 0.7325 GB make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.makefile make -j1 -f Buildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_u.makefile clang++ -std=c++14 NOTFOUND -Winvalid-pch -O2 -g -DNDEBUG -fPIC -std=c++11 -DBOOST_ALL_DYN_LINK -DUSE_DGESV -DUSE_LOGGER -DOMC_BUILD -DUSE_THREAD -DSUNDIALS_MAJOR_VERSION=5 -DSUNDIALS_MINOR_VERSION=4 -DPMC_USE_SUNDIALS -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/bin/../include/omc/cpp/" -I. -I"." -I"." -I"/var/lib/jenkins1/ws/OpenModelicaLibraryTestingWork/OpenModelica/OMCompiler/build/include/omc/sundials" -DMEASURETIME_PROFILEBLOCKS -DUSE_LOGGER -c -o OMCppBuildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_uCalcHelperMain.o OMCppBuildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_uCalcHelperMain.cpp clang: error: no such file or directory: 'NOTFOUND' make: *** [: OMCppBuildings_8_Buildings.Fluid.HeatExchangers.Examples.WaterHeater_uCalcHelperMain.o] Error 1