想做练习，但有些别人建立的sas的表格打不开，log提示输出格式有问题：

ERROR: Format UTIME not found or couldn't be loaded for variable AGEUNITS.
ERROR: Format ULENGTH not found or couldn't be loaded for variable HTUNI.
ERROR: Format RACES not found or couldn't be loaded for variable RACES.
ERROR: Format SMOKE not found or couldn't be loaded for variable SMOKE.
ERROR: Format UWT not found or couldn't be loaded for variable WTUNI.
这种情况该怎么解决呢？
或者有什么选项把是这些格式不显示?求助。。