Matlab Vitdec function implementation

Question

I am using the following code for the implementation of convolutional code using matlab

cons_length=7
generator_poly=[171 133]; 
trpath=34; 
poly = '24A';
dataIn = randi([0 1],1,N_BxP);
tbIn = nrCRCEncode(dataIn.',poly);     
trel = poly2trellis(cons_length,[generator_poly]);
dataEnc = lteRateMatchConvolutional(codedcbs, Length_dataEnc).';
rateRec = lteRateRecoverConvolutional(dataDemod.',N_BxP)
trel = poly2trellis(cons_length,[gen_poly]);
decoded=vitdec(rateRec,trel, trpath,'cont','soft',3);

Just to say that rateRec consists of values like this -1.7018 -0.3755 0.4524 9.4121 -0.1610 0.1800 0.2524 -1.0731 -1.8816 0.0795 -2.4602 -2.2036 0.0415 -1.0967 1.0078 -0.4108 -0.5434 0.2701 0.6878 0.8257 -1.7155 -0.8709 0.0300 -0.2810 8.2568 -0.1436 -0.0657 -6.7162 4.4784 -4.2911 -0.0781 -0.3415 0.2059 -1.1142 4.0876 1.2382 -0.7907 -1.3802 2.8720 1.2596 -2.7989 -2.7493 0.3043 0.1299 3.2667 2.6796 14.4780 0.2189 0.3117 1.0459 -0.1915 -2.3378 -0.1176 -0.7231 -6.0025 -0.4837 -1.1506 -0.8879 -0.8992 6.2695 -0.2418 -3.3876 0.2047 -0.0290 0.4868 2.8566 2.5898 -4.6786 0.1462 0.7459 0.5473 0.1714 -0.6590 -3.8415 -0.6275 -1.0391 2.4783 0.0780 -0.9566 1.0141 0.0796 0.4242 -3.7200 -0.2354 0.0383 -0.1341 0.1131 -0.0775 -3.5422 0.8990 -2.1438 -2.7785 -1.0434 0.2204 -0.0526 0.3468 -0.8140 -6.3887 -1.9256 -0.0670 -0.2589 -0.2383 -2.0280 0.2896 -1.4117 -0.7039 1.0902 0.4206 -1.0687 -0.8485 -7.3176 -2.0153 0.3261 4.4434 -6.2526 -0.5168 -0.0570 1.8752 -2.4366 0.3086 -0.8003 -1.0237 0.1348 -2.8155 0.8851 -3.0306 0.5061 3.3568 0.2598 -0.8516 -1.5677 5.7550 -0.7004 0.5088 5.9704 0.0048 -0.0659 -0.4193 3.3207 -0.0678 0.5848 1.1707 3.2928 0.0223 -6.3225 -2.7085 -1.3176 -0.3441 But I am getting error in vitdec. I think I am not using it correctly. I have tried hard decoding with trunc but still gets error because hard decision only uses binary values.