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TPS61032: Simulation ERROR(ORPSIM-16318): Missing or invalid expression

Part Number: TPS61032

I am simulating the TPS61032 boost converter for my application and started tranient simulation unkwon error occuried,

INFO(ORPROBE-3183): Simulation running...
** Profile: "SCHEMATIC1-bias"  [ d:\projects\iaq\hardware\simulation\boost converter\tps61032-pspicefiles\schematic1\bias.sim ]
Reading and checking circuit
ERROR(ORPSIM-16318): Missing or invalid expression
ERROR(ORPSIM-16318): Missing or invalid expression
Circuit has errors ... run aborted
See output file for details
INFO(ORPROBE-3188): Simulation aborted

Info : Model used from Ti Pspice itself