SDKMAN 安装软件失败

Stop! * is not a vaild candidate.

$: sdk offline disable
$: sdk install gradle

Stop! gradle is not a vaild candidate.

出现该错误是由于sdk缓存的候选人列表已经损坏，你需要清除候选人列表，重新打开一个终端重试。

# 清除候选人列表
sdk flush candidates

INTERNET NOT REACHABLE!

$: sdk install gradle
==== INTERNET NOT REACHABLE! ===============================

 Some functionality is disabled or only partially available.
 If this persists, please enable the offline mode:

   $ sdk offline

============================================================

This command is not available while offline.

最后发现在公司内网无法下载，你需要开启代理来下载。

参考链接: sdkman & sdkman-cli & sdkman工具的使用