问题

I read all this crap about Android SDK installation troubles.

Nothing works for me.

Every time I get the error

C:\Users\user\AppData\Local\Android\android-sdk\tools>android
Error: Could not find or load main class com.android.sdkmanager.Main

when I try to start android.bat.

My environment:

C:\Users\user\AppData\Local\Android\android-sdk\tools>java -version
java version "1.7.0_71"
Java(TM) SE Runtime Environment (build 1.7.0_71-b14)
Java HotSpot(TM) 64-Bit Server VM (build 24.71-b01, mixed mode)

JAVA_HOME=c:\Program Files\Java\jdk1.7.0_71\jre\bin

PATH=c:\Program Files\Java\jdk1.7.0_71\jre\bin\;%SystemRoot%\system32;%SystemRoot%;...

I use latest android SDK version (on Dec 8, 2014) - installer_r23.0.2-windows.exe, tried to use latest JDK7 & JDK8 builds. Same error all the time.

How to fix this?

回答1:

Issue:

JAR required in bat file is in path %APP_HOME%\..\lib\sdkmanager-classpath.jar but caused by some unzip program issue, this file was extracted to %APP_HOME%..\lib\_\sdkmanager-classpath.jar

Solution:

So don't use windows embed unzip tool, switch to others like 7z, the directory will be correctly, and you can run sdkmanager.bat with no error.

回答2:

A clean way to go about this is to follow the following steps:

Go to /path-to-android-sdk/
Delete the Tools directory
Open Android Studio
Open tools -> Sdk Manager
Click on the Sdk Tools Tab
Uncheck Hide Obsolete Packages
Go into the Modal and check Android Sdk Tools (Obsolete)
Click Apply
Wait While it Downloads....
When download is done,go back to /path-to-android-sdk/
You should find your tools directory again
Everything should work fine now.

Note: What we simply did was delete and replace the old Tools which was corrupted or incompatible

回答3:

I think the latest version '6200805' has some issue, even I got the same problem.

Solution: Use the older SDK manager version, please find below links for the older version.

Windows no installer: https://dl.google.com/android/repository/sdk-tools-windows-4333796.zip

MacOSX: https://dl.google.com/android/repository/sdk-tools-darwin-4333796.zip

Linux: https://dl.google.com/android/repository/sdk-tools-linux-4333796.zip

回答4:

Look for sdkmanager.jar. This file should be located in the ...tools\lib folder. According to the content of the executed android.bat:

...
set jar_path=lib\sdkmanager.jar;lib\swtmenubar.jar
...

In my case, I also had a /lib_cc folder which contained the missing files. The problem was fixed with backed up the origin /lib file to /lib_1 and copy of /lib_cc to /lib.

回答5:

Make sure you have all the required Android SDK packages installed too, these include SDK Platform 25, Android SDK Build-Tools 25.0.2 or later, Android Support Repository, Google Repository and any other SDKs that you may need. OR Try To Reinstall