我下载好后 ./ct-ng build
出现了这个问题
[INFO ] Performing some trivial sanity checks
[ERROR] Your file system in '/mnt/hgfs/shareCD/esp/crosstool-NG/.build' is *not* case-sensitive!
[ERROR]
[ERROR] >>
[ERROR] >> Build failed in step '(top-level)'
[ERROR] >>
[ERROR] >> Error happened in: CT_Abort[scripts/functions@331]
[ERROR] >> called from: CT_TestAndAbort[scripts/functions@351]
[ERROR] >> called from: main[scripts/crosstool-NG.sh@93]
[ERROR] >>
[ERROR] >> For more info on this error, look at the file: 'build.log'
[ERROR] >> There is a list of known issues, some with workarounds, in:
[ERROR] >> '/home/tjw/workspace/esp/crosstool-NG/docs/B - Known issues.txt'
[ERROR]
[ERROR] (elapsed: 26281751:10.23)
[00:00] / ct-ng:152: recipe for target 'build' failed
make: *** [build] Error 1
求问这是什么意思，我该怎么做
