Android SDK 安装没找到JDK

Question

I'm trying to install the Android SDK on my Windows 7 x64 System.

jdk-6u23-windows-x64.exe is installed, but the Android SDK setup refuses to proceed because it doesn't find the JDK installation.

Is this a known issue? And is there a solution?

Answer 1

Press Back when you get the notification and then Next . This time it will find the JDK .

Answer 2

Actual SETUP:

• OS : Windows 8.1
• JDK file: jdk-8u11-windows-x64.exe
• ADT file: installer_r23.0.2-windows.exe

Install the x64 JDK , and try the back-next option first, and then try setting JAVA_HOME like the error message says, but if that doesn't work for you either, then try this:

Do as it says, set JAVA_HOME in your environment variables, but in the path use forward slashes instead of backslashes.

Seriously.

For me it failed when JAVA_HOME was C:\\Program Files\\Java\\jdk1.6.0_31 but worked fine when it was C:/Program Files/Java/jdk1.6.0_31 - drove me nuts!

If this is not enough, also add to the beginning of the Environment Variable Path %JAVA_HOME%;

Updated values in System Environment Variables:

• JAVA_HOME=C:/Program Files/Java/jdk1.8.0_11
• JRE_HOME=C:/Program Files/Java/jre8
• Path=%JAVA_HOME%;C:...

Answer 3

I found the solution and it's beautifully stupid. I found Android SDK cannot detect JDK .

Press the Back button on the SDK error screen that tells you that the EXE couldn't detect the JDK. Then press Next .

Who would have thought that would happen?

Answer 4

It seems like it doesn't work without 32 bit JDK. Just install it and be happy...

Answer 5

I downloaded the .zip archive instead and ran SDK Manager.exe , and it worked like a charm. You had the same issue with the .exe otherwise.

Answer 6

Warning: As a commenter mentioned, don't try this on a Windows 7! I tested it with Windows XP 64 bit.

As the posted solution does NOT work for all (including me, myself, and I), I want to leave a note for those seeking for another way (without registry hacking, etc.) to solve this on a Windows 64 bit system. Just add PATH (capital letters!!) to your environment Variables and set the value to your JDK-Path.

I added JDK to the existing "Path" which did not work, like it didn't with JAVA_HOME or the "Back"-Solution. Adding it to "PATH" finally did the trick.

I hope this might be helpful for somebody.

Answer 7

All you need are the following two registry entries. It appears as if whoever posted the other registry stuff basically just copied all the keys from HKEY_LOCAL_MACHINE\\SOFTWARE\\JavaSoft into HKEY_LOCAL_MACHINE\\SOFTWARE\\Wow6432Node\\JavaSoft , which obviously isn't an ideal solution because most of the keys aren't needed.

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Development Kit]
"CurrentVersion"="1.6"

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Development Kit\1.6]
"JavaHome"="C:\\Program Files\\Java\\jdk1.6.0_23"

Answer 8

Non of these solutions worked for me. I fixed it by temporarily changing the filename of C:\\Windows\\System32\\java.exe to java_.exe

Answer 9

None of the solutions here worked for the 64-bit version.

Putting the JDK path before the c:\\windows\\system32\\ path in your environment variables solves the problem. Otherwise the 32-bit java.exe is found before the 64-bit JDK version.

Answer 10

After reading a couple of blog posts, it does seem to be even an easier fix by clicking BACK when the installer says couldn't find the JDK, and then simply click NEXT again and magically it finds the JDK. No registry messing around or re-downloading etc..

Answer 11

Adding JAVA_HOME environment variable (under System Variables ) did the trick for me. Clicking "Back" and "Next" buttons didn't work.

Windows 7 Professional x64, JDK 1.7.0_04 (64 bit, I don't have x86 version installed)

I think that installer tries to find JDK in specific (1.6?) version and if it can't find it, checks JAVA_HOME which was not set in my case. I have another computer (the same system but with JDK 1.6 x64) and it worked without JAVA_HOME variable.

You don't have to install 32 bit version of JDK :)

Answer 12

I copied the Java.exe from

C:\\Windows\\System32

to

C:\\Windows\\SysWOW64

and it worked.

I'm using 64 bit Windows 8.

Answer 13

Setting the JAVA_HOME environment variable to

C:\\Program Files\\Java\\jdk1.7.0_07

instead of

C:\\Program Files\\Java\\jdk1.7.0_07\\bin

fixed it for me.

Answer 14

The guy above who put this: "I experienced this problem too, but none of the answers helped. What I did, I removed the last backslash from the JAVA_HOME variable and it started working. Also, remember not to include the bin folder in the path." This was in fact the correct answer.

For this SDK to install this is what I did. I am running the latest Microsoft OS Windows 8.

User Variables:

Path C:\\Program Files\\Java\\jdk1.7.0_07\\bin

Environment Variables

Create these two:

CLASSPATH %HOME_JAVA%\\jre\\lib

HOME_JAVA C:\\Program Files\\Java\\jdk1.7.0_09

This one already exists so just edit:

Path At this end of WindowsPowerShell\\v1.0\\ simply add " ;C:\\Program Files\\Java\\jdk1.7.0_09"

This is what I did and it worked for me. =)

Answer 15

这个注册表修复在我的 Windows 7 x64 设置中就像一个魅力： http : //codearetoy.wordpress.com/2010/12/23/jdk-not-found-on-installing-android-sdk/

Answer 16

Press Report error and OK . Next will be enabled.

Answer 17

尝试下载并安装压缩版本而不是 .exe 安装程序。

Answer 18

Also, RUN AS ADMINISTRATOR ! Worked for me with backslash fix.

Answer 19

I had the same problem, tried all the solutions but nothing worked. The problem is with Windows 7 installed is 64 bit and all the software that you are installing should be 32 bit. Android SDK itself is 32 bit and it identifies only 32 bit JDK. So install following software.

1. JDK (32 bit)
2. Android SDK (while installing SDK, make sure install it in directory other than "C:\\Program Files (x86)", more probably in other drive or in the directory where Eclipse is extracted)
3. Eclipse (32 bit) and finally ADT .

I tried it and all works fine.

Answer 20

我遇到了同样的问题，并通过安装 x86 版本的 JDK（在 Windows XP x64 上）解决了这个问题。

Answer 21

I experienced this problem too, but none of the answers helped. What I did, I removed the last backslash from the JAVA_HOME variable and it started working. Also, remember not to include the bin folder in the path.

Answer 22

Android SDK 是 32 位应用程序，它需要 32 位 JDK 才能工作...... 64 位 JDK 对它没有任何用处......

Answer 23

WORKING SOLUTION AND NO REGISTRY MODIFY NEEDED

Simply put your java bin path in front of your PATH environment.

PATH before

C:\Windows\system32;C:\Windows\%^^&^&^............(old path setting)

PATH after

C:\Program Files\Java\jdk1.6.0_18\bin;C:\Windows\system32;C:\Windows\%^^&^&^............(old path setting)

And now the Android SDK installer is working.

BTW, I'm running Win7 x64.

Answer 24

1-Simply done the "JAVA_HOME" environment variable thing.

2-Right-Click on Android SDK and from compatibletiy Tab Select windows 7 and administrator.

3-Run it again.

Answer 25

For installer_r21.1-windows.exe on Windows 8 x 64 what worked for me was setting up my user environment variable JAVA_HOME to C:\\Program Files\\Java\\jdk1.7.0_10. Hope this helps you all! :)

Answer 26

Yeah install the 32 bit version of the Java SE SDK (or any of the combinations). That should help solve your problem.

Answer 27

The above methods did not work for me in Windows 8 Pro.

Just set the path to

C:\Program Files\Java\jdk1.7.0_07\

Where C is your drive in which you have installed the JDK.

Don't forget the backward slash at the end.

Answer 28

I'm running a 64-bit version of Windows 7 and I was getting this issue when attempting to install Android Studio 1.0 using the executable from:

http://developer.android.com/tools/studio/index.html

I tried all the listed solutions and several different versions of JDK 1.7 and 1.8 -- no dice. I went with installing the zipped version of the application and it worked like a charm:

http://tools.android.com/download/studio/canary/latest

Still baffled by this problem; especially since beta versions of Android Studio worked just fine.

Answer 29

You will have to download the 32-bit SDK version because Win7 64-bit is not supported only Windows Server 2003 has a supported 64-bit version. During the download of Java SDK pick "Windows" as your platform and not "Windowsx64".
Once I did this android SDK installed like a charm. Hope this helps.

Answer 30

For Windows users:

You would set JAVA_HOME environment variable: http://wso2.org/project/wsas/java/1.1/docs/setting-java-home.html

Answer 31

I tried several posted solutions and then it took a system reboot before it started working, which may have been because I had just installed the JDK. Here are all the things I had going on - not sure which ones were essential:

• 64-bit JDK installed.
• JAVA_HOME defined using forward slashes (/) instead of backslashes ().
• JDK 'bin' directory listed at beginning of PATH.
• System reboot.

Answer 32

This issue has been fixed on SDK revision 20.xxx

Download it via http://dl.google.com/android/installer_r20.0.3-windows.exe

Answer 33

You might want to restart your machine. For me, without having to use forward slashes it worked after I restarted windows.

Answer 34

Install both JDK 64 bit 1.6 for Windows and JRE 1.7 64bit for Windows .

It worked in my case.

Answer 35

I spent a little over an hour trying just about every option presented. I eventually figured out that I had a lot of stale entries for software that I had uninstalled. I deleted all the registry nodes that had any stale data (pointed to the wrong directory). This included the

[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\JavaSoft\Java Runtime Environment]

and

[HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment]

entries as a JRE included in the JDK.

I also got rid of all the JAVA entries in my environmental variables. I guess I blame it on bad uninstallers that do not clean up after themselves.

Answer 36

4 Different Solutions:

1) If you get above screen, just click BACK button and from previous screen click NEXT button. Actually silly, but sounds good.

2) Download SDK Manager .zip format instead of .exe and then try to install. It's all so silly, but work like a charm.

3) If you installed 64 bit JDK means, just uninstall that and install 32-bit JDK.

4) You have to change that as following,

JAVA_HOME=C:/Program Files/Java/jdk1.8.0_11
JRE_HOME=C:/Program Files/Java/jre8
Path=%JAVA_HOME%;C:…

Answer 37

There is too many ways for doing it:

Way number one

If Java is installed perfectly in your machine, then please close the installer and try to reinstall it.

When you open it for the second time, it will find JAVA.

Way number 2

Set up an environment variable like this-

Environment variables for java installation

And then try again.

It should work:)

Answer 38

It is bug in the Android installer. Download the latest installer and try it. Then it will work.

Answer 39

In my case problem was in JAVA_TOOL_OPTIONS environment variable. Nothing helps me until I removed it. Hope it help someone!

Answer 40

My problem was that i run studio.exe instead of studio64.exe. I'm running Windows 8 64bits

Answer 41

For Wine users:... For reasons having to do with "unimplemented" (as in: the "find" command and the "/D" switch to "copy"), it appears that you have to cheat a bit more to get Android SDK to see JDK in Wine.

However, I have passed the hurdles and am (I suppose) obliged to share something (anything) that worked:

1. What is responsible for finding Java is the script "tools/lib/find_java.bat". In the beginning of that file, add:

   set java_exe=%JAVA_HOME%/bin/java.exe goto:EOF

   2. To circumvent the "copy /D not implemented" issue, in "tools/android.bat" comment out (with "rem") the lines from just after

   :MkTempCopy

to just before

:EndTempCopy

You should now (if you've set JAVA_HOME) be able to run android.bat and install the SDK parts you need.

Answer 42

Windows 8 running the x64 SDK.

1. Download the latest JDK from here: Oracle JDK
2. Once downloaded and extracted go into the JDK file at C:\Program Files\Java\jdk1.7.0_80\bin and double click on the java Application file (it's the only one called just java ). This will briefly open the command line.
3. Begin the process of installing Android Studio again, from scratch. It should automatically detect the SDK now.

For whatever reason Android Studio wouldn't detect it no matter what I put in manually or searched using the browse option.

Pressing back would not work.

Reporting the error would not work.

Adding JAVA_HOME or other suggestions to the C:... would not work.

It was only beginning the installation of Android Studio again after running the java file that it worked.

Answer 43

I have the jdk installed on my D: drive. None of the other answers worked for me. I got it to install by creating a symbolic link from the C: drive to the installed location:

    c:
    cd "Program Files"
    mklink /d Java "d:\Program Files\Java"  

Note that the jdk (and jre) install directories are subdirectories of "Java" so upgrading is not a problem even though the name changes with the release.

Answer 44

I add the following in the users Environment Variable( Windows 10)

JAVA_HOME=C:/Program Files/Java/jdk1.8.0_11
JRE_HOME=C:/Program Files/Java/jre8
Path=%JAVA_HOME%;C:...

And then cancel the current installation of Android Studio and start again. It worked fine this time for me. No JDK error.

Answer 45

While this question has already been answered. Here is what exact steps you need to do when you are setting up for development. In general anything related to Java Development.

Setting Up Java

Make sure you are using latest jdk url

curl -L -O -H "Cookie: oraclelicense=accept-securebackup-cookie" -k "http://download.oracle.com/otn-pub/java/jdk/8u60-b27/jdk-8u60-linux-x64.tar.gz"
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/jdk1.7.0_67/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/local/jdk1.7.0_67/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/local/jdk1.7.0_67/bin/javaws" 1
sudo update-alternatives --config java
sudo update-alternatives --config javac
sudo update-alternatives --config javaws

Setting up your system in this case ubuntu/mac

export ANDROID_HOME=/home/ashish/android-sdks
export ANDROID_SDK=/home/ashish/android-sdks
export JAVA_HOME=/usr/local/jdk1.8.0_45
export JDK_HOME=/usr/local/jdk1.8.0_45/
export JRE_HOME=/usr/local/jdk1.8.0_45/jre
export PATH=$PATH:$ANT_HOME/bin:$JAVA_HOME/bin:$JRE_HOME/bin:$ANDROID_HOME/platform-tools:$ANDROID_HOME/tools

this contents needs to appear in .profile in ubuntu or .bash_profile in mac in home folder we can go there using cd ~

Answer 46

If the Android SDK installation is not able to find the JDK, it may be because the JDK is not installed on your system or it may not be located in the expected location.

To fix this issue, you will need to install the JDK if it is not already installed, and then ensure that it is located in the correct location.

To check if JDK is installed or not, open command prompt and type "java -version", if JDK is installed it will show the version of JDK otherwise it will show "java is not recognized as an internal or external command"

Once you have installed JDK, you may need to update the system environment variable JAVA_HOME to point to the location of the JDK.

You can also check the android studio settings. Go to File > Settings > Appearance & Behavior > System Settings > Android SDK > SDK Platforms. Here, you can check whether JDK installed or not.

After that, you should be able to install the Android SDK without any issues.

Here are the steps to change the system environment variable JAVA_HOME in Windows:

1. Press the Windows key + R to open the Run dialog box.
2. Type "sysdm.cpl" and press Enter to open the System Properties window.
3. Click on the Advanced tab, then click on the Environment Variables button.
4. In the System variables section, scroll down and find the JAVA_HOME variable. If it does not exist, click on the New button to create it.
5. In the Variable name field, type "JAVA_HOME" (without quotes). In the Variable value field, enter the path to the JDK installation directory (eg, "C:\Program Files\Java\jdk1.8.0_241").
6. Click OK to close the Environment Variables window, then click OK again to close the System Properties window.