Android SDK installation doesn't find 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

This registry fix worked like a charm on my Windows 7 x64 setup: 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

Try downloading and installing the zipped version rather than the .exe installer.

Answer 18

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

Answer 19

I had the same problem and solved it by installing the x86 version of the JDK (on Windows XP x64).

Answer 20

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 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 is 32 bit app, and it requires the 32 bit of JDK to work... the 64 bit JDK won't make any use for it...

Answer 23

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 24

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 25

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

Answer 26

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 27

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 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

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 30

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.