Develop Reference

Android SDK requires ADT version 23 or above

I was working on a project in Eclipse and unfortunately I removed some of my files and wasn't able to retrieve them back so I ended up creating a new project and importing my files back in. When this happened, I now receive an error:
When I try and update, it says it's already updated. I'm receiving multiple compilation errors in my project and am not sure what is going on since everything was working before I removed my files.
I see that it is telling me DDMS files are not found.. is this due to it not picking up my SDK? I tried to Help -> Install New Software and do a ADT but it seems I have already installed this since everything was working before.
Help on this issue on how to proceed/fix would be appreciated, thanks!

It seems that eclipse has edited or deleted files when updating
follow steps for updating eclipse
1. Download Eclipse from the official site
2. Download and install JDK latest version
3. After installing the eclipse, go to Help > Install New Software.
4. Click Add, in the top-right corner.
5. In the Add Repository dialog that appears, enter "ADT Plugin" for the
Name and the following URL for the Location: https://dl-ssl.google.com/android/eclipse/
Click OK.
6. In the Available Software dialog, select the checkbox next to Developer Tools and click Next.
7. In the next window, you'll see a list of the tools to be downloaded. Click Next.
8. Read and accept the license agreements, then click Finish.If you get a security warning saying that the authenticity or validity of the software can't be established, click OK.
9. When the installation completes, restart Eclipse.

Error: This Android SDK requires Android Developer Toolkit version 22.6.1 or above

I have installed adt version 22.6.1 already 2 days ago. It was working fine. Suddenly, When I open eclipse today, it keeps showing me following error:
This Android SDK requires Android Developer Toolkit version 22.6.1 or above. Current version is 22.2.1.v201309180102-833290. Please update ADT to the latest version.
Here is screenshot of my eclipse's Android SDK Manager :
I tried with following steps to resolve my issue as discussed in this Link
Help | Install new software
Select the ADT update site (there are two, one with http:// and one with https://. If one doesn't work, try the other.
Select the developer tools section and press next.
You should see a dialog that says This software is already installed, an update will be performed instead. Clicking OK will lead to 22.6.1 being installed.
But unfortunately it didn't work for me.
Here is a screenshot I am attaching which shows the error I am getting while updating the tools.
How can I get rid of it?

I have solved this issue yesterday.
Follow the steps :
Help -> Install New Software -> Add -> (Give any name suppose NewUpdate) -> add this url : https://dl-ssl.google.com/eclipse/plugin/4.2 -> OK
Now it will list the available updates, which should ideally be adt 20.x.x
Select the list items Let it be installed. Eclipse will restart and Its done.
I hope this will helpful for you :)

Yet, if someone is facing this issue, Then follow steps below:
download new stand alone SDK from android's developer site
Close eclipse if it is opened and copy new downloaded sdk in the same location where your already existing old sdk is. Must replace conflict files and keep rest.
No need to delete old sdk. Copying as in step 2 will update your Android Developer Toolkit version to 22.6.1 or above which is required and will keep already downloaded APIs.
Now start your eclipse, and the error will be gone forever. :)
if someone will have trouble doing so, leave me a comment, will try to guide.

I managed to resolve it by doing the following:
Downloaded latest ADT (Win x64)
Deleted my old ADT install (It got bugged when I simply tried to overwrite the existing files) - see this google issue
Copied the zip file to C:\ (since it was complaining about too long filenames while unpacking)
Unpacked to my ADT install folder.
Ran updates and SDK manager updates.
Now it's working, but I lost my pretty Eclipse theme. Oh, and the target adt is not being resolved, a problem for another topic.

Just delete the existing ADT and install new version of ADT.generally this problems occurs
when you update SDK using below link.
https://dl-ssl.google.com/android/eclipse/

The ADT Bundle on developer.android.com seems to me as out of date.
I fixed the same problem by downloading eclipse (Java EE was my choice, but you can choose your flavor) and Installing the Eclipse Plugin

this steps solve my problem:
go to Help -> Install New Software.
in the bottom box, click What is already installed? text.
then you will see Eclipse Installation Details box, please Uninstall all conflicts software, in my case I uninstall the following software:
Android DDMS
Android Development Tools
Android Hierarchy Viewer
Android Native Development
Android Traceview
Tracer for OpenGL ES
when uninstall complete, please restart your Eclipse.
after your Eclipse open, please follow again these steps:
go to Help -> Install New Software.
in Work with box, select or add {ADT Plugin - https://dl-ssl.google.com/android/eclipse}.
then check all available software.
click Next > to install newest software.
I hope this helps you :)

I use OSX and facing the problem for 2 days.
I solved the problem by following the steps below:
-Download ADT Bundle from https://developer.android.com/sdk/index.html
-Help -> Install New Software
-Write https://dl-ssl.google.com/android/eclipse/ then install Developer tools
-Restart eclipse and raised the error below:
Android SDK content Loader has encountered a problem.parseSdkContent failed
java.lang.NullPointeException
-Delete .android folder under user profile. Restart eclipse
No errors and 22.6.1 is installed.

For those who tried everything but didn't get any positive result. I did the following and it worked:
Uninstall the ADT by helping from following link:
Uninstalling Android ADT
Now you can follow the install new software to add ADT to your eclipse. This way you won't get any conflict since you uninstalled old version.

I currently have Eclipse and ADT installed in the same directory as
F:\eclipse
\eclipse\
\sdk\
I downloaded and installed the latest ADT to
C:\Users\Rick\AppData\Local\Android\android-sdk
I then copied the contents of the C:\Users\Rick\AppData\Local\Android\android-sdk into the F:\eclipse\sdk\ folder, and let it merge all folders and overwrite everything.
Now I have 22.6.1 and I don't have to re-download all the platform stuff again.

Today me and one of my friends faced the same problem, so I have tried many things like restarting eclipse, checking updates, etc. but none was working for me.
Then I found a solution from Here and it's working as a charm for me and also for my friend.
Follow the steps here:
Start Eclipse, then select Help > Install New Software.
Click Add, in the top-right corner.
In the Add Repository dialog that appears, enter "ADT Plugin" for
the Name and the following URL for the Location:
https://dl-ssl.google.com/android/eclipse/
Click OK.
If you have trouble acquiring the plugin, try using "http" in the Location URL, instead of "https" (https is preferred for security reasons).
In the Available Software dialog, select the checkbox next to
Developer Tools and click Next.
In the next window, you'll see a list of the tools to be downloaded.
Click Next. Read and accept the license agreements, then click
Finish.
If you get a security warning saying that the authenticity or
validity of the software can't be established, click OK.
When the installation completes, restart Eclipse.

The "Install new Software" under help in Eclipse will NOT work because it conflicts with ver#22.
I just downloaded the new Eclipse bundle from:
Get the Android SDK - google site, extracted it in a new folder ant it is done.
It is working smoothly, no problems.
Few tips to save you time:
Backup your workspace (just in case) - personally didn't use this back.
Once you open the new eclipse.exe it will ask you to select a workspace - just brows to your ols workspace and it will import all your projects (no problems).
In order to save time of download and install of the SDK again, I Cut & Paste the OLD SDK library from the previous bundle directory to the new one (Close your new Eclipse first).
When you re-open Eclipse, you may receive an error message saying that Eclipse can't find the SDK directory. It will ask you to open "Preferences". Once open, browse to the new SDK directory (the one that you just copied). Doing this will save you hours of re-installing all the SDK updates that you did on the previous Eclipse.
Have fun, it is really not a big deal.

new AVD can't click on OK button, not system image [duplicate]

This problem sounds similar to a few others, except in my case the OK button is not grey-ed out. But for those who would rather not click the links...
Trying to create or edit an AVD from within Eclipse, after entering my settings, the "OK" button seems to be "clickable", but when I click it absolutely nothing happens.
I've made sure I have the appropriate system images installed, and that the target platform matches the API being used. Clearly a CPU has been chosen, skin set, etc... all the things that would make the OK button greyed out, which it's not.
I can create/edit AVDs if I run the AVD manager from outside eclipse, so this isn't the end of the world, but I feel there's a solution to this particular problem and I want to help solve it.
I've tried running eclipse as an administrator (that's what stopped the AVD manager from crashing outside of eclipse). I've tried just waiting around, or clicking multiple times. Looking at the Task Manager, no new processes begin when I click OK, nor does eclipse's CPU or RAM usage increase at all. The "Edit Android Virtual Device" window doesn't even go away.
Any clues?
(Running Indigo with the ADT plugin, btw, not the bundled version, which failed to work in a different way. Java 1.6.0 45. Windows 8, unfortunately. Plenty of RAM etc)

THIS IS A POSSIBLE WORKAROUND FOR BUGS IN ADT 22.6.0 ONLY, THESE BUGS SUBSEQUENTLY FIXED IN FOLLOWING BUILDS
Download and install new ADT v22.6.1 from here (zip) or use SDK manager to update
Seems like some bug from Google side, this problem found after "ADT 22.6" update. Widely reported on "Android Open Source Project - Issue Tracker" and nobody properly answered it yet.
However I was partially successful to create an AVD by opening "AVD manager.exe" from "Android SDK" for creating new AVD try to open directly AVD Manager.exe in SDK folder.
May be we have to wait for any conformation from Android community
Worked for me, sort of.. .
(Windows 8.1 Pro 64 Bit, Java JDK 1.7 Update 25, Eclipse Standard Kepler Service Release 1, Android Development Toolkit 22.6.0.v201403010043-1049357)
Update 1
Further research revealed that launching AVD Manager from SDK Manager (Tools --> Manage AVDs...) also works without any problems.
Update 2
More bad news is AVD creation not working from command line tool too.
Update 3
Assuming some parameter passed during launching AVD manager from Eclipse causes these problems
Update 4
Updated Java to JDK 1.7 Update 51 and Eclipse Standard SDK to Kepler Service Release 2 their latest and no resolution to the problems. Also tested under Debian and same results obtained.
Update 5
At https://code.google.com/p/android/issues/detail?id=66661 android project members conforms the problems and promises to fix by upcoming versions of ADT (22.6.1 - 22.6.3). At the mean time I would suggest to roll-back ADT to a lower version version 22.3.0
To uninstall current ADT go to
Help --> About Eclipse --> Installation Details --> Android Development Tools --> Uninstall
I may suggest uninstalling whole packages from Android (DDMS, Hierarchy Viewer, NDT, Traceview, OpenGL ES..etc..) to avoid any possible compatibility issues and install a fresh new ADT from above link through archive installation method.
Hope this will solve this problem temporarily. And wait for new release of ADT here.
Update 6
New ADT, version 22.6.1 is out now which will solve these problems

To elaborate on the statement "I can create/edit AVDs if I run the AVD manager from outside eclipse" in the OP:
Run the following on the command line
<android-sdk-location>/tools/android avd (on Linux in this case)
This launches the same AVD window you see when you click the AVD Manager icon in the eclipse toolbar. But this instance of the AVD manager does not have the bug, and you can create and run emulators as you did before the bug was introduced.

1 minute solution
I used a quick workaround where I cloned a device that already existed. The Clone button worked and I was able to successfully edit the clone.
Steps:
Select a Device by Google
Click the "Clone..." button
A window will pop up, click "Clone device"
Select the newly cloned Device, it should say "... by User"
Click the "Edit" button on the side
There you have it, you now have your own custom virtual device

Update and Solution: AsYashwanth Krishnan said, The bug in question is now fixed in later versions. I tried ADT 222.6.1 and ADT 22.6.2 , and they did not suffer from the bug of not not being able to create or edit Android Virtual Devices. The direct solution is to update you ADT to latest version, The workaround written below is left only for historical purposes.
Historical Workaround As #Yashwanth Krishnan said, this is a bug in ADT plugin 22.6; so best workaround is to rollback. for those asking how to rollback, here is a step-by-step guide:
First: Uninstall ADT plugin and all related plugins for android:
help->about
Installation details
Select android plugins and press uninstall button
Restart
Second: Download ADT 22.3.0 Archive from https://dl.google.com/android/ADT-22.3.0.zip
and install it
add repository from archive on local disk
Select android plugins

INFO:
I WAS able to create an AVD successfully after clicking OK several times and modifying some of my settings as a test.
I tried yashwanth krishnan solution and tried to open the AVD Manageer.exe directly without success. The manager will not open directly for me on Windows 8 x64. It tries to open, then shuts down immediately...

I met this issue too . The issue occurs in the latest version 22.6 which was released in March . Meanwhile I did the testing in 22.3 , the issue was not found .
So that I suggest that rollback the ADT to 22.3 and wait the new fix for 22.6

I banged my head on this for several hours until I found out that the default location was C:\username path\SDKs or something, where Android was installed on my system to D:\sdks\android_sdk_windows. So, changing the Eclipse Android directory to D:\sdks\android_sdk_windows fixed it.
I also heard that it may help things if you install the Android SDK to a path without spaces.
Hope this helps someone keep some hair.

Today I ran into the same problem after installing Maven. I messed around with different Path settings to get it to work and I ran into issues. I was also trying to install the google server for GCM. Somewhere in what I was doing I corrupted the Android Virtual Device Manager. I searched S.O. for an answer, then I decided to follow the first rule of TechSupport. I reinstalled the tool kit!
I went into the SDK manager and I uninstalled the tools (by clicking the Tool checkbox). It took several minutes to delete them all. Then I reinstalled the Tools which took about ten minutes. I rebooted Eclipse and the AVD and worked just like it did yesterday!
This time it only took a total of twenty minutes to fix.

Per the release notes, this problem has been resolved in revision 22.6.1, which is now available for download.
Updated your Android SDK Tools to 22.6.1 in Eclipse by selecting Window > Android SDK Manager and follow the prompts to install the update.
After that update finishes, select Help > Check for Updates and follow the prompts to update the appropriate Eclipse components.
After completing these updates, I tested the AVD functionality and it appears to be working properly.

i just copied the avds from a different system as descriped here:
Android - How to copy the emulator to a friend for testing

I faced the similar issue. I am using 23.0.2 version of android SDK.
"OK" button was disabled, but then I went to the path where android SDK was installed. In my case:
C:\Program Files\Android\android-sdk\
and executed AVD-Manager.exe by right clicking and selecting Run as an Administrator, and it worked like a charm.

Sometimes the AVD cannot be created because of this following error while starting:
x86 emulation currently requires hardware acceleration!
I was also facing this same issue. If u are facing the same, then it can be resolved by opening SDK Manager -> Under Extra -> Installed "Intel x86 Emulator Accelerator (HAXM Installer). Then when creating the AVD, select the proper CPU. This should work. :-)

For those posting that we need to set the sdcard size: I tried that and many other settings, and none of that helps. I get the NoClassDefFound Exception mentioned by mogilka, in the Error view. No configuration settings are going to fix that. It seems a bad update was pushed

Give some value for your sd card. May be something like 100 or 200

Why doesn't Android appear in Eclipses' preferences?

I've installed the Android Developer tools as per the official instructions.
Why doesn't the tab appear in Windows->Preferences, as they said it should?

Remove the plugin, then restart as follows:
eclipse -clean
Now try reinstalling the ADT from the online installation
OR
Head over to Help -> Install New Software. Click on Available software sites. Delete the Android repo. Uncheck Indigo & Eclipse updates & recheck them. Now head back to Help -> Check for updates. Once done, add the Android repo again. Accept the license & you should be good to go.
Happy Coding..

This won't fix your issue directly, but I suggest your take a look at the MOTODEV STUDIO for Android. Essentially, it's a customized Eclipse IDE with all the Android tools preinstalled and many more of their own tools for app validation. I find their tools usefull, especially the code snippets and the app validator. I believe you will need to register to download, but it's a quick and free process and you can always use a temporary email service. Anyway, this should allow you to get up and running until you find your bug (even if I don't see why you'd switch back to plain eclipse).
MOTODEV STUDIO for ANDROID

Check your plugins directory, located in the folder you extracted the original eclipse zip file to.
For me it is located in
eclipse-java-indigo-SR2-win32-x86_64\eclipse\plugins
and I see the following files related to the ADT plugin
com.android.ide.eclipse.adt_18.0.0.v201203301601-306762.jar
com.android.ide.eclipse.ddms_18.0.0.v201203301601-306762.jar
com.android.ide.eclipse.hierarchyviewer_18.0.0.v201203301601-306762.jar
com.android.ide.eclipse.traceview_18.0.0.v201203301601-306762.jar
overlay.com.android.ide.eclipse.adt.overlay_18.0.0.v201203301601-306762.jar
Make sure you have files similar to these.
Now open a shell and run the following in your eclipse install directory
eclipse.exe -console
you should get the osgi (Open Services Gateway Initiative) console. Now you can see whether your bundles have unresolved dependencies and start them manually. So try
osgi> diag com.android.ide.eclipse.adt
and
osgi> start com.android.ide.eclipse.adt
and check the output.

Have you restarted eclipse after install of ADT plugin

I see you are on Windows, I had the same problem and in my case I had to run Eclipse as administrator to install the plugin, so uninstall it, restart eclipse as administrator and reinstall it. You don't need afterward to run eclipse as administrator just to use the plugin, its only required for the installation.
The root cause might be folders ownership problems, as quoted by others, when I had the same problem I tried setting folders ownership but I could not apply my permission changes so running as administrator eclipse was the easy way for me. If you are not allowed to run eclipse as administrator on your station then you should search on the ADT documentation which folder should be owned by the user running Eclipse.

Check the answers in this post:
Maybe going to choose Help > Check for Updates or reinstalling ADT plugin again works.

There are chances that the plugin may not have been correctly installed. Try reinstalling the ADT. Or in the help menu check for the updates nad try installing through it.
I hope it 'll solve your problem.

Which you are using eclipse id , i think you are not using proper id. For better reference visit below links
Hello-world-example
Installing-adt

Same problem here. I've solved it like these:
Start Eclipse, then select Help > Install New Software.
Click Add, in the top-right corner.
In the Add Repository dialog that appears, enter "ADT Plugin" for the
Name and the following URL for the Location:
https://dl-ssl.google.com/android/eclipse/
Click OK.
If you have trouble acquiring the plugin, try using "http" in the
Location URL, instead of "https" (https is preferred for security
reasons).
In the Available Software dialog, select the checkbox next to
Developer Tools and click Next.
In the next window, you'll see a list of the tools to be downloaded.
Click Next. Read and accept the license agreements, then click
Finish.
If you get a security warning saying that the authenticity or
validity of the software can't be established, click OK.
When the installation completes, restart Eclipse.
Followed from here

Location of the android sdk has not been setup in the preferences in mac os?

I am installing the Android SDK along with Eclipse in mac os. Whenever I try to start a new project development I get an error location of the android sdk has not been setup in the preferences
How do I resolve this problem?

Hi try this in eclipse: Window - Preferences - Android - SDK Location and setup SDK path.

I got this message after updating eclipse platform-tools and tools from the SDK Manager and then it was impossible to update the SDK path because I had an old version of ADT plugin.
Whenever you get this error message in a prompt right after eclipse loaded, you should do the following:
Go to Help - Install new software
Click on Available software sites
Delete the link http://dl-ssl.google.com/android/eclipse/
Reboot eclipse
Go to Help - Install new software
In the box "Work with" add http://dl-ssl.google.com/android/eclipse/ again
Install ADT and accept whatever that prompts.
This is how my problem with this message got solved.

I saw this error after updating the Android SDK to r17. The solution was to go to Help -> Update and get the latest version of the Android SDK to match.

I experienced this problem and fixed it by updating to the latest Android SDK Tools which in my case was 20.0.3
I am running Mac OSX Lion 10.7.4
If ever you encounter errors while updating the SDK Tools try deleting
http://dl-ssl.google.com/android/eclipse/
from the "Available Software Sites" in Eclipse, and adding it again.

If you have not installed plugin for eclipse, install it first.
If the plugin is installed, setup preferences: "Eclipse">"Preferences...", in left column choose "Android"(do not expand list, just choose root element), and first preference will be "SDK Location".

I've had the same problem on Eclipse Juno.
No "Welcome page" appeared, I could not create a project, compilation didn't work and "Graphical layout" didn't work.
I have fixed it:
Window > Preferences > General > Startup and shutdown:
Check "Android development toolkit"
Reestart Eclipse.
Of course you have to be configured this:
Window - Preferences - Android - SDK Location and setup SDK path.

Simply create this folder:
C:\Users\xxxxx\android-sdk\tools
and then from Window -> Preferences -> Android, put this path:
C:\Users\xxxxx\android-sdk

I had the same problem when I was trying to upgrade from ADT 20.0.x to ADT 23.0.x on Eclipse Indigo.
To fix the issue, I had to uninstall the ADT plugin (remove feature) from Eclipse, then reinstall the newer versions.
This maybe done by going to Help->Install New Software. Then at the bottom of the page, click What is already installed?
All what is left now is to install the newer versions as usual from help->Install New Software.

there are many things which can cause this error. For example, I
imported google api from the android SDK Manager and that is when I
got this same error. Eclipse broke down on me. I could not even create
a new android project.
To fix this, I went to help - Install New Software... - from the "work with"
drop-down box I selected http://dl-ssl.google.com/android/eclipse/ -
I then check marked "Developer Tools" and hit the Next button.
I then followed the prompts and it basically did a re-install. It took less
than 5 minutes. That resolved the error.
Now Im back up and running, and I got the lastest version of Eclipse.

i tried everything/....but only this thing worked for me:
To fix this, I went to help - Install New Software... - from the "work with" drop-down box I selected http://dl-ssl.google.com/android/eclipse/ - I then check marked "Developer Tools" and hit the Next button. I then followed the prompts and it basically did a re-install. It took less than 5 minutes. That resolved the error.
Now Im back up and running, and I got the lastest version of Eclipse.
Thanks a lot Nadir

Hope this helps:
Step 1.) Go to https://www.eclipse.org/downloads/index-developer.php?release=kepler and download appropriate Eclipse version.
Step 2.) Extract downloaded zip file in appropriate location. In this tutorial, I have downloaded and installed it under program files.
Step 3.) Right click on eclipse.exe file and send shortcut to desktop.
Step 4.) Double click on eclipse shortcut from desktop and select appropriate location to create your workspace.
Step 5.) Navigate to Window > Preferences. This should open Preferences window.
Step 6.) On the left hand side page expend “Java” and click on “Installed JREs”
Step 7.) Click Add. It will open “Add JRE” dialog. Select “Standard VM” and click Next.
Step 8.) For “JRE home” select “Direcotry…”. This will open “Browse for folder” dialog. Select the location where your JDK is installed. NOTE: MAKE SURE THAT ITS x64 AS WELL, AS WE ARE USING 64-BIT VERSION OF ECLIPSE.
Step 9.) If you have selected proper location, it will show JDK version in JRE name and it will display “JRE system libraries”.
Step 10.) Click finish. Now your JDK is properly pointed as “Installed JREs”.
Step 11.) Select checkbox unchecked before name of your JDK name.
Click ok and you’re done. You are now using JDK as “Installed JREs”
Read complete procedure at below location.
https://softwaretestingboard.com/qna/4/how-do-i-map-android-sdk-after-eclipse-plugin-is-installed#axzz4wM3UEZtq

You can find the Android SDK path by running the SDK Manager. Once the window comes up the path is displayed at the top. For me it was hiding in AddData (Windows). You can then set the path in Eclipse by going Window > Preferences > Android > and set SDK Location.

If you already installed in your eclipse you can solve this problem below,
Go to Windows -> Install New Software and find your android plugin address
Check all lists and re-install your android plugin for eclipse
I solved it like this

It is very irritating problem... i found one simple solution...that is
eclipse->help->Install new software
now u see "work with"field...below this fields u observe on link called
"available software sites"...click on this link..then open one window...here u find out some location address..... delete wrong locations and then add perfect location to install/update location. then click on ok button... then ur problem is solved....

This problem seems to arise from new versions of android sdk the solution that worked fine for me was to go to help->check for updates and let that finish once all software in eclipse updated it all seems to work fine. I was using juno and the latest sdk, which I upgraded outside eclipse.

i was facing the same problem.
the solution is...Copy the link http://dl-ssl.google.com/android/eclipse/
then in eclipse go to
Help > Install New Software > Add(work with) > past the link on locations > ok > select all > next
this will solve your problem.

If you already setup location in preferences, but see that error, try to create folder "add-ons" in your sdk folder

had the same problem in windows, the reason is always displayed at the top of the window(where you browse for the location)

Here is, how I've handled this issue (Mac OS X 10.8.4):
1) Because I previously have installed Android Studio the sdk located here:
Applications/Android Studio.app/sdk
You can dig into Android Studio.app folder by hitting "Show package contents" in context menu
2) Simply copy the "sdk" folder to another location and write it down to Eclipse preferences.
Because I couldn't find how to properly add adress like "/Android Studio.app/sdk" (folder with .app extension) to Eclipse preferences.
I know that this solution is not smooth and best, but it works (at least for me). And I've tried all advices in this theme, and installed the ADT from http://dl-ssl.google.com/android/eclipse/ before, but the error window have kept appearing every time.

I had the same problem: when click on the "Opens the Android SDK Manager", a pop out error message says “Location of the Android SDK has not been setup in the preference”.
The delete and add again update address in "install new software" doesn't work for me.
I went to the ../android/android-sdk-windows and click the SDK Manager.exe. This works for me.
So I think after I updated the SDK, the eclipse cannot trigger the SDK Manager currently. But it can run by itself outside of eclipse.