lquartus调用modelsim的时候出问题了

Info: Start Nativelink Simulation process
Error: ERROR: Can't open project: ex2
ERROR: Can't open project: ex2
Error: NativeLink simulation flow was NOT successful

================The following additional information is provided to help identify the cause of error while running nativelink scripts=================
Nativelink TCL script failed with errorCode:  NONE
Nativelink TCL script failed with errorInfo:  ERROR: Can't open project: ex2
    while executing
"project_open $project -force -cmp $action_pt"