[求助] 在有R做WGCNA时出现了NaN dissimilarity value. 怎么办

> gag=goodSamplesGenes(dataExpr,verbose=3) Flagging genes and samples with too many missing values...   ..step 1   ..Excluding 21341 genes from the calculation due to too many missing samples or zero variance.   ..Excluding 1 samples from the calculation due to too many missing genes.   ..step 2 > gsg$allOKsampleTree=hclust(dist(dataExpr),method="average" Error in hclust(dist(dataExpr), method = "average" :   NaN dissimilarity value.    我在用R做WGCNA，在样本聚类检查离群值时，有了这个错误，这是为什么啊？怎么办啊？

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