很奇怪，这段代码在别人的电脑上就运行正常，在我的电脑上就各种报错
figarch(epsilon, 1, 1, 'NORMAL')
报错如下：
Undefined function 'normloglik' for input arguments of type 'double'.

Error in figarch_likelihood (line 57)
        [LL, LLS] = normloglik(epsilon,0,ht);

Error in figarch_starting_values (line 94)
        LLs(i) = figarch_likelihood(outputParameters(i,:),p,q,epsilon,epsilon2,truncLag,1,false);

Error in figarch (line 116)
[startingvals,nu,lambda,LLs,orderedParameters]=figarch_starting_values(startingvals,epsilon,epsilon2Augmented,p,q,errorType,truncLag);

求大神解答