我正在尝试在安装新gem之后重新使用rbenv 它在我的ubuntu服务器上给了我这些错误
rbenv: cannot rehash: /home/deployer/.rbenv/shims/.rbenv-shim exists
然而.rbenv-shims不存在
答案 0 :(得分：17)
目录权限可能存在问题： https://github.com/sstephenson/rbenv/issues/238#issuecomment-11903292
FWIW - I also had this problem, and had to change permissions on the dir where it was checking for the .rbenv-shim... so it could write to the dir, so it stopped complaining.
另外，试试：
rm /home/deployer/.rbenv/shims/.rbenv-shim
并运行：
rbenv rehash