错误：无法找到或加载主类 com.android.sdklib.tool.sdkmanager.SdkManagerCli

Question

我在我的 gui-less 服务器上运行 Ubuntu 18.04。我已经安装了android-sdk包，它似乎坏了——没有tools/lib目录，所以sdkmanager不起作用：

dpkg -L android-sdk
/.
/usr
/usr/lib
/usr/lib/android-sdk
/usr/lib/android-sdk/tools
/usr/lib/android-sdk/tools/bin
/usr/lib/android-sdk/tools/proguard
/usr/lib/android-sdk/tools/proguard/bin
/usr/lib/android-sdk/tools/proguard/lib
/usr/share
/usr/share/doc
/usr/share/doc/android-sdk
/usr/share/doc/android-sdk/README.Debian
/usr/share/doc/android-sdk/changelog.gz
/usr/share/doc/android-sdk/copyright
/usr/lib/android-sdk/tools/bin/e2fsck
/usr/lib/android-sdk/tools/bin/fsck.ext4
/usr/lib/android-sdk/tools/bin/mkfs.ext4
/usr/lib/android-sdk/tools/bin/resize2fs
/usr/lib/android-sdk/tools/bin/screenshot2
/usr/lib/android-sdk/tools/bin/tune2fs
/usr/lib/android-sdk/tools/proguard/bin/proguard
/usr/lib/android-sdk/tools/proguard/bin/proguardgui
/usr/lib/android-sdk/tools/proguard/lib/proguard.jar
/usr/lib/android-sdk/tools/proguard/lib/proguardgui.jar
/usr/lib/android-sdk/tools/proguard/lib/retrace.jar

./sdkmanager 
Error: Could not find or load main class com.android.sdklib.tool.sdkmanager.SdkManagerCli

如何在不手动安装 SDK 的情况下修复它？