在用gemma进行亲缘关系矩阵计算时，已经給fam文件添加表型但还是报错
命令：/data/soft/gemma/gemma-0.98.5-linux-static-AMD64 -bfile /wtmp2/user049/yushiyan/prune_/alleledphwemafmissing_LDfiltered.snps -gk 2 -p /wtmp2/user049/yushiyan/-P/pheno.txt -o /wtmp2/user049/yushiyan/kinship/result.kinship_n21
ERROR: Enforce failed for number of analyzed individuals equals 0. in src/param.cpp at line 2075 in ProcessCvtPhen 【由于分析的个体数等于0，强制失败。在ProcessCvtPhen中第2075行的src/param.cpp中】
