我找到了使用最新命令行工具的解决方案，以下步骤:

1 -将命令行工具提取到如下结构的文件夹: 例如:$ HOME /开发/ android / cmdline-tools /最新 (此文件夹必须包含lib, bin, notice.txt和source.properties)

2 -将ANDROID_HOME定义为环境变量:

ANDROID_HOME="$HOME/Development/android/cmdline-tools/latest"

3 -加载它的路径:

PATH="$PATH:$ANDROID_HOME/tools:$ANDROID_HOME/tools/lib:$ANDROID_HOME/tools/bin:$ANDROID_HOME/platform-tools"

Android SDK工具现在休息在以下位置:“android_sdk/cmdline-tools/version/bin/”;

因此，在Windows操作系统中解决此问题(其他操作系统也一样)，请执行以下操作:

在android_sdk文件夹中，创建文件夹:cmdline-tools，并在其中创建另一个文件夹:version extract / put all your files "/bin /lib注意和源代码。此版本文件夹中的“属性”文件。 将ANDROID_HOME设置为android_sdk文件夹。 添加到系统路径:android_sdk\cmdlineAndroidSDK\cmdline-tools\version\bin\

类似地，将Android SDK平台工具放在android_sdk/ Platform - Tools /中，并在系统变量下的环境变量中添加相应的PATH

Unity 2018文档中的这一页也很好地解释了解决这个问题的方法，包括以下几点:

在没有Android Studio的情况下安装Android SDK。 “警告:无法创建设置”和“java.lang.IllegalArgumentException”的解决方案 Android Studio 3.6或更新版本的诀窍。 关于Java 9或更高版本的警告，JDK必须是版本8。

https://docs.unity3d.com/2018.4/Documentation/Manual/android-sdksetup.html

我们不再为每个命令执行传递参数——sdk_root，而是深入研究真正的原因。

Starting from Android SDK Command-line Tools 1.0.0 (6200805), in contrast to Android SDK 26.1.1 (4333796), the tools directory hierarchy has been changed. Previously it was placed right inside ANDROID_HOME (which is deprecated, we will use the term ANDROID_SDK_ROOT for the rest of the paragraph), now it's still named as tools (the only thing you'll get after unpacking the downloaded commandlinetools zip file), but differently, you have to place it inside a directory called cmdline-tools on your own. The name cmdline-tools comes from its package name, where you can get from listing packages command sdkmanager --list, whose outputs include cmdline-tools;1.0 | 1.0 | Android SDK Command-line Tools.

将tools目录包装到cmdline-tools目录中将使其工作，并帮助您摆脱恼人的——sdk_root参数。但是其他部分呢?

这就是你要改变的。让我解释更多。

The king - sdkmanager lives inside cmdline-tools/tools/bin, you'd better set in PATH environment variable cmdline-tools should not be set as ANDROID_SDK_ROOT. Because later, when updating Android SDK, or installing more packages, the other packages will be placed under ANDROID_SDK_ROOT, but not under cmdline-tools. The final, complete ANDROID_SDK_ROOT directory structure should look like below, consist of quite a few sub-directories: build-tools, cmdline-tools, emulator, licenses, patcher, platform-tools, platforms, system-images. You can easily point out that build-tools and cmdline-tools are siblings, all sit inside the parent ANDROID_SDK_ROOT.

让我简单概括一下:

设置您首选的ANDROID_SDK_ROOT(就像以前一样) 下载并解压commandlinetools zip文件到名为cmdline-tools的目录中，该目录位于ANDROID_SDK_ROOT目录中 将目录$ANDROID_SDK_ROOT/cmdline-tools/tools/bin追加到环境变量PATH后，这样系统就知道在哪里可以找到sdkmanager

更新! ! ! !

自构建6858069 (Android SDK命令行工具3.0)以来，行为再次发生了变化:

After unzipping the package, the top-most directory you'll get is cmdline-tools. Rename the unpacked directory from cmdline-tools to tools, and place it under $ANDROID_SDK_ROOT/cmdline-tools, so now it should look like: $ANDROID_SDK_ROOT/cmdline-tools/tools. And inside it, you should have: NOTICE.txt bin lib source.properties. Actually according to the official Command-Line Tools doc, the tree structure should be android_sdk/cmdline-tools/version/bin/, but I've checked, using version or tools makes no difference here. For your environment variable PATH, I would recommend you to set like this: PATH=$PATH:$ANDROID_SDK_ROOT/cmdline-tools/latest/bin:$ANDROID_SDK_ROOT/cmdline-tools/tools/bin, because after update later, you'll get the latest sdkmanager placed under $ANDROID_SDK_ROOT/cmdline-tools/latest/bin, put it in front will make it higher priority.

简单的解决方案:

打开Android Studio工具菜单， SDK管理器在窗口中出现 上面是内嵌板， 选择SDK工具面板勾选Android SDK命令行工具 选择窗口底部附近的Apply按钮

同样的问题，通过谷歌来的。 根据AndroidStudio Archive，今天是4.1版本的发布日。 我想这不是巧合。

这个完全不相关的指南有一个针对linux的老版本sdk-tools的硬链接。 对于其他操作系统，可以将url更改为windows或mac。我现在就用它来解决问题。

(这应该是一个评论而不是一个解决方案)