Android Studio upgraded to version 4.0.1, and now I get a "Unable to locate adb" message when trying to launch an Android emulator image from the AVD manager, in order to run/debug a Flutter app. I have tried all the obvious things, e.g. checked to see that there is an adb.exe image at .../AppDate/Local/Android/Sdk/platform-tools. I have even tried de-installing completely and did a clean install of everything from scratch. I have plenty of disk space, anti-virus has not quarantined it. Interesting, if I start a native Android app (e.g. "basic activity"), then the message goes away and the image starts OK
Android Studio - launch emulator AVD - "unable to locate adb"
Visit the above link to get solution in detailed way with pictures.
I had the same issue as you were facing, I have Researched the Whole Internet but found nothing useful. So, I somehow figured out the problem and fixed it, The problem is at
app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
Whenever we create a new project due to some reason the Module SDK is not set up automatically. Thus the ADB manager was throwing an error 'Unable to locate AVD', which is not that fatal as the error/warning is not stopping us from launching /starting the emulator, but it is so annoying to see that pop-up box. So here is my simple and quick fix.
Solution:
Click on the project folder, tap the dropdown icon just beside it.
Now Navigate to the path below.
android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
Now Click on the file GeneratedPluginRegistrant.java to open it.
Once it is open, At the Top you will notice a bar that says 'Module SDK is not defined',
Now right against it, you will also see a hyper-text named 'Setup SDK', Just Click on it.
That will open a Pop-up Box with the title 'Select project SDK'.
Now select the Android Platform API and then click OK. After that being done Restart your IDE.
Your Problem will be Solved. And you will also notice that Emulator Opens up way faster than before.
NOTE:
The Above Steps has to be performed with every new flutter project.
I have already answered to your question before to Read more and understand in detail with pictures just visit the link
Android Studio - launch emulator AVD - "unable to locate adb"
I know there is already post about this, but none seems to work for me. Android studio unable to locate ADB. I checked my adb.exe exists in the path folder. I have deleted my McAfee anti virus as well following the advice from before, but not working.
Found the solution. The virtual device api was Android 10+ (30), and I just added another virtual device (Android 10, 30). I don't see the error any longer 😊👍👍
I had the same issue as you were facing, I have Researched the Whole Internet but found nothing useful. So, I somehow figured out the problem and fixed it, The problem is at
app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
Whenever we create a new project due to some reason the Module SDK is not set up automatically. Thus the ADB manager was throwing an error 'Unable to locate AVD', which is not that fatal as the error/warning is not stopping us from launching /starting the emulator, but it is so annoying to see that pop-up box. So here is my simple and quick fix.
Solution:
Click on the project folder, tap the dropdown icon just beside it.
Now Navigate to the path below.
android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java
Now Click on the file GeneratedPluginRegistrant.java to open it.
Once it is open, At the Top you will notice a bar that says 'Module SDK is not defined',
Now right against it, you will also see a hyper-text named 'Setup SDK', Just Click on it.
That will open a Pop-up Box with the title 'Select project SDK'.
Now select the Android Platform API and then click OK. After that being done Restart your IDE.
Your Problem will be Solved. And you will also notice that Emulator Opens up way faster than before.
NOTE:
The Above Steps has to be performed with every new flutter project.
I have already answered the problem here before.
Follow this link to see the pictures and step by step process.
Android Studio - launch emulator AVD - "unable to locate adb"
First post--be gentle. Can't find any posts on Android Studio 4.0, so I hope this isn't a repeat. I updated Android Studio from 3.6.3 to 4.0 on Windows 10 (1909). Had created a couple of virtual devices in 3.6.3 (a Pixel 2 running API 28 and a Pixel 3 running API 29)--both worked great in AS-3.6.3 and I could develop apps, compile, load, and run them with no problem.
After the update to AS-4.0, the virtual devices no longer appear in the devices box at the top of the GUI--it just says "No Devices". When I open the AVD Manager, I can see them, and I can start them (although when I start them I get a pop-up saying "AVD Manager: Unable to locate adb"), but I can't get any code to download and execute on it. On the Pixel 3 emulator, I also get another pop-up saying "Detected ADB: Could not automatically detect an ADB binary.", and it gives instructions to resolve it, which don't make any difference (jump into extended controls and toggle "Use detected ADB location").
When I try to open a past project and run it, I get the same behavior--no devices found.
I've also tried making new emulators, hoping the new setup would recognize them, but to no avail. Tried starting and restarting AS, as well as the computer, also to no avail. I have Android SDK Build-Tools 30-rc4, the latest Android SDK Command-line Tools, Android Emulator 30.0.12 Android SDK Platform-Tools 30.0.1, and the Intel x86 Emulator Accelerator all installed.
I've Googled and spoken words of fierce power over this for several days now. Any suggestions for how to get AS-4.0 to recognize the emulators? I've resisted uninstalling everything and starting over--was hoping it was just a configuration thing.
Thanks in advance,
Uber
After some more Googling, I found the answer here (I think my constraint of wanting an answer for AS-4.0 specifically kept me from finding it):
Could not automatically detect an ADB binary - Android Studio
I had to redownload the SDK platform-tools zip file and reinstall it. I don't know why the old one got messed up with the migration from AS-3.6.3 to 4.0, but there you go--such is life with complicated software.
As soon as I replaced the old platform-tools directory with the new one, all my old emulators showed up and I was back in business.
Thanks anyway!
Uber
Recenty I installed Android Studio on my laptop running Ubuntu 16.04.
When I created a new project and used Android Studio, this annoying popup kept showing: (Because my low reputation, I cannot post images, please click the link below)
https://i.stack.imgur.com/zNMbk.png
I tried to check the checkbox but it still display everytime I click on anywhere in Android Studio.
Help me, thanks in advance.
Try to use this for creating a desktop entry: desktop-file-install THE_DESKTOP_FILENAME_HERE.desktop
It might be the solution (if error it's because it localized the fileB, if ok it will copy to the correct localization /usr/share/applications) Restart then
After trying many times, I decided to reinstall Android Studio and the error disappeared! I don't know the reason clearly but maybe using Create Desktop Entry in Android Studio and creating a .desktop file manually (after installing Android Studio, I wanted to add Android Studio icon to launcher) caused conflicts.
goto settings in android studio
keymap-> main menu-> tools-> create desk entry
right-click on "create desktop entry"
you will get an option to turn off it.
I am using Windows 10 and when I launch the Virtual Device Emulator in Android Studio I keep getting the message which reads:
"The ADB binary at C:\Users\siviw\AppData\Local\Android\Sdk\platform-tools\adb.exe is obsolete and has serious performance problems with the Android Emulator. Please update to a newer version to get significantly faster app / file transfer".
I am a new developer with little experience. What do I need to update to a newer version so that message is no longer shown?
I am new to android as well. dkalev's answer is correct but not very descriptive for a new user. I have outlined the steps below.
Double Shift to open the search box
Type SDK Manager
In the results shown click "SDK Manager"
In the window that opens click the second tab "SDK Tools". You should see that there is an update available for SDK Build-Tools on the first line
Check "Show Package Details" in the lower right hand corner
Scroll to the last (latest version) item under "SDK Build-Tools" and check the box. (Mine was 28.0.1)
Click "Apply"
In the dialogue box that pops up, click "OK"
When the installer finishes, click "Finish"
Uncheck "Show Package Details" and look at "Android SDK Build-Tools" (first line). There should be no update available and it should say "Installed"
Click "OK" to close the SDK Manager
For me, update SDK doesn't help. I solve this problem by unchecking the emulator option "Use detected ADB location". Give it a try.
I had the same problem and solved it by updating the Android SDK Build-Tools. Open the SDK manager in Android studio (double shift and type SDK manager). Then on the second tab (SDK Tools) update the Android SDK Build-Tools and the error message should go away.
This is an years old bug.
Check your adb version like this : (the adb path is given with the error itself)
C:\Users\<your_user_name_>\AppData\Local\Android\Sdk\platform-tools\adb.exe --version
output :
Android Debug Bridge version 1.0.41
Version 29.0.4-5871666
Installed as C:\Users\sunil\AppData\Local\Android\Sdk\platform-tools\adb.exe
It means this adb comes from the latest sdk platform tools 29.0.4.
Check the latest version from official site here.
If you already have the latest version of ADB installed, and still getting the error, this is a known issue. Google hasn't yet provided any other ADB. Click on the "never show again" option and continue.
17-01-2019
This works for me.
Just opened Android SDK Manager Then it showed 4 Updates Available. So I just Updated it and No more above warning.
Had the same issue but in my case the fix was slightly different, as no updates were showing for the Android SDK Tools. I opened the Virtual Device Manager and realised my emulator was running API 27. Checked back in the SDK Manager and I didn't have API 27 SDK Tools installed at all. Installing v 27 resolved the issue for me.
In my case what removed this message was (After updating everything) deleting the emulator and creating a new one.
Manually updating the adb didn't solved this for. Nor updating via the Android studio Gui.
In my case it seems that since the emulator was created with "old" components it keep showing the message. I had three emulators, just deleted them all and created a new one. For my surprise when it started the message was no more.
Cannot tell if performance is better or not. The message just didn't came up. Also I have everything updated to the latest (emulators and sdk).
This happened to me. And, in my case I need Android SDK Platform 29 because I am using react native 0.63 and Android 10 (Q). I had to uninstall Android SDK Platform 28 because it was the one that caused the warning.
I found this video See Here explaining the process.
Open Android Studio then click on configure
Go to SDK Manager
Go to SDK Tools and click show package details
Uncheck Android SDK Platform 28 (OBS: for me) and Apply
Click OK and Finish.
With this I was able eliminate the warning.
I had the same problem and solved it by updating the Android SDK Build-Tools in Android Studio.
step 1 - Double shift and type SDK manager, this will open the SDK manager
step 2 - Then on the second tab (SDK Tools), update the Android SDK Build-Tools and the error message should go away.
if this does not resolve check the option in Setting tab,use detected Adb tool in Setting tab
(You mentioned you are new to Android Studio) so I recommend pressing the Android Studio > Help > Check for updates... button that will update your environment.
I solved this error by uninstalling two older SDK build tools versions, leaving only the most recent one.
The solution that worked for me -
I closed my Android Studio.
I visited this site - https://androidstudio.io/downloads/tools/download-the-latest-version-of-adb.exe.html
From there I downloaded the latest adb.zip file
I unzipped the folder and copied the 3 files -
adb.exe
AdbWinApi.dll
AdbWinUsbApi.dll
I went to the folder - C:\Users\PayelSenapati\AppData\Local\Android\Sdk\platform-tools
There I replaced the old files by the new files. (Paste followed by replace the existing files)
Then I reopened my Android Studio, opened my virtual android device. Everything went fine. The error was no more.
In the SDK Manager, in the SDK Tools tab, check if you have any updates, if not, deselect "Hide Obsolete Packages" and check if you have something marked as (obsolete) if so, deselect the item and apply. In my case, it was the Android SDK Tools.
First you need to check which SDK your Emulator is using and as #kuya suggested you need to follow those steps and install the latest version of that SDK Build Tool. Suppose your Emulator uses SDK 27 then you need to install latest in that series. For me it was 27.0.3. After that the error was gone.
Try factory reset to virtual device from Android Device Manager
None of the top-voted answers worked for me, except when I unchecked "Use detected ADB location" as mentioned above by #褚阳光. Fortunately, in my case though, the message didn't show up, even when I turned it back on. In other words, the problem might be resolved by restarting "Use detected ADB location" :)
Try update your SDK Tools items, and then delete all currently created emulator and recreate again. it works for me
This might sound normal but I was getting the same error but just updated it and it worked now without any error. I suggests anyone to try for updates first.
If you are stuck after following each of the steps outlined in above, I will suggest you combine more than one answers. The answers of #Kuya and #褚阳光 worked for me. Try them out. I can explain more if the steps are yielding results for you.
This can also be an issue with hyper-v settings on Windows 10 pro. Because with this error I was facing BSOD - https://www.techclassy.com/fix-hypervisor-error-bsod/
I faced the same issue, and I tried following things, which didn't work:
Deleting the existing AVD and creating a new one.
Uninstall latest-existing and older versions (if you have) of SDK-Tools and SDK-Build-Tools and installing new ones.
What worked for me was uninstalling and re-installing latest PLATFORM-TOOLS, where adb actually resides.
I got this error and I tried all the possible solutions that I found on every site, nothing worked.
I was working with flutter, and the command flutter doctor showed me that I need to accept a few agreements
I did that and ADB started to work
So conclusion:
If nothing works, install flutter, run flutter doctor, execute the commands that flutter doctor suggests to you. This should solve your problem
the command was: flutter doctor --android-licenses
I followed the answer, but the magic final step was deleting the existing virtual environment and creating a new one.