I0Error: [Errno 2]

The terminal displays the following duplicated error:

IOError Traceback (most recent call last)
/usr/bin/yade in <module>()

/usr/bin/yade in checkStress()
    138 global flag
    139 if fabs(getStress().trace()/3.0)>=finalconso_p or O.cell.size[0] <=750:
--> 140 fabric()
    141 addPlotData()
    142 print("mean stress p",fabs(getStress().trace()/3.0),separator="=")

/usr/bin/yade in fabric()
    199 #fabricTensor=utils.fabricTensor(cutoff=0.0,splitTensor=True,thresholdForce=0.0)
    200 consoFabricfile=os.getcwd()+'/consofabric/'+'consofabric'+str(O.iter)
--> 201 f1=open(consoFabricfile,'w')
    202 f1.write('id1 id2 id1_x id1_y id1_z id2_x id2_y id2_z Fn_x Fn_y Fn_z Fs_x Fs_y Fs_z contactp_x contactp_y contactp_z overlap_distance r1 r2\n')
    203

IOError: [Errno 2] No such file or directory: '/home/dem/Wanqi/2D/2Dexa/1/consofabric/consofabric438'

Does this mean I need to create more particles? Or set a smaller velocity for periodic boundaries?