Even after updating Flutter doctor says Try re-installing or updating your Android SDK Manager

Question

Here is my Flutter doctor summary:


Running flutter doctor...
Doctor summary (to see all details, run flutter doctor -v):
[√] Flutter (Channel master, v1.10.13-pre.12, on Microsoft Windows [Version 10.0.17134.1006], locale en-IN)
[!] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
    X Android license status unknown.
      Try re-installing or updating your Android SDK Manager.
      See https://developer.android.com/studio/#downloads or visit https://flutter.dev/setup/#android-setup for detailed instructions.
[√] Android Studio (version 3.5)
[√] Connected device (1 available)

! Doctor found issues in 1 category.

C:\Users\user>

I have already updated My SDK manager to the latest version
My SDK version is 29.0.2
How can I resolve this error... This error appears even after updating SDK manager

Screenshot of SDK Location:

Screenshot of SDK Location

score 10 · Answer 1 · edited Jul 18 '21 at 05:28

It works for me, Here are the steps that solve my problem:

STEP 1:ANDROID LICENSES --android-licenses, will resolve most cases

Since you are here you have reached "Android License Status Unknown" issue for Android tool chain, as many suggested try flutter doctor --android-licenses. If you are good with all the config. It should ask for an yes and press y and Voila. But if it shows:

Click image 1 here

Android sdkmanager tool not found (C\Users\__\local\Android\sdk\tools\bin\sdkmanager). Go to step two

STEP 2: SDK Manager installation from Android Studio

Open your Android Studio , File-> settings->System settings(left tab) ->Android SDK, go to SDK Tool section in that page, untick hide obsolete packages, select Android SDL tools(obsolete) and press apply.

Click image 2 here

It will install the SDK and you confirm it by going and checking if this path exists(C\Users\__\local\Android\sdk\tools\bin\sdkmanager)

STEP 3: Repeat 1

Repeat step 1 after installation in a new command line check if its working , else go to STEP 4

STEP 4: sdkmanager --update

It will ask you update the sdk, just run the command given in terminal C\Users\__\local\Android\sdk\tools\bin\sdkmanager --update. If it is running, then its cool. let it finish and repeat step 1, else if it is throwing some exceptions like java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema etc,

Click image 3 here

It means your java is not installed or not the correct version. Go to next step

STEP 5: JAVA 8.1 and JAVA_HOME path.

Install JAVA 8.1 and set JAVA_HOME path. Make sure it is version 8.1(register free account and download from oracle the 8.1 version, remember above 11+ wont work for Flutter

Click image 4 here

NOTE: by yaniv maymon: if you already have Java installed on your computer and the sdkmanager --update still not working. go the environment variable and update the "JAVA_HOME" path to jdk folder. then exit the command prompt, open it again and run the update command –

STEP 6: Final Step

After installing and setting up path properly, run the C\Users\__\local\Android\sdk\tools\bin\sdkmanager --update command in new terminal and it will work

STEP 7: Rerun flutter doctor, You can see it saying to run the command flutter doctor --android-licenses . so run flutter doctor --android-licenses in terminal and press y when asked

Resources

score 1 · Answer 2 · answered Oct 07 '19 at 15:29

1

It could be that your path is not set correctly? Have you looked in Settings>Appearance and Behavior>System Settings>Android SDK>Android SDK Location?

answered Oct 07 '19 at 15:29

Code Poet

6,222
2
29
50

I have added screenshot in the question to show sdk location...please look at that – raman raman Oct 07 '19 at 15:37
It shows an existing android SDK was detected ...How to solve this error ???/ – raman raman Oct 07 '19 at 15:41

score 1 · Answer 3 · answered Oct 11 '19 at 16:23

1

I had the same problem and solve it installing the latest java version Java 8. Then setting JAVA_HOME Variable. In Windows: Environment Variables> System Variables> add a new or edit your JAVA_HOME> in the Variable Value field, enter your JDK or JRE installation path the JAVA_HOME. After this, the command flutter doctor --android-licenses worked.

answered Oct 11 '19 at 16:23

Crislaine Maciel

11
1

But I have installed jdk13 – raman raman Oct 12 '19 at 02:16
how to properly setup java – raman raman Oct 14 '19 at 05:35
For Windows, you can use this to help: [https://confluence.atlassian.com/doc/setting-the-java_home-variable-in-windows-8895.html] – Crislaine Maciel Oct 14 '19 at 08:07
https://confluence.atlassian.com/doc/setting-the-java_home-variable-in-windows-8895.html – Crislaine Maciel Oct 14 '19 at 11:46
In system variable I have added jdk-13 in 'JAVA_HOME' Then in the same SYSTEM VARIABLE I added jdk-13/bin to 'path' is it correct? – raman raman Oct 14 '19 at 12:14

score 0 · Answer 4 · answered Oct 07 '19 at 16:18

0

According to this issue in the flutter repository it seems like you have not accepted all the SDK license agreements.

You can resolve it by running

flutter doctor --android-licenses

in you terminal and accepting the outstanding licenses by pressing y and return.

answered Oct 07 '19 at 16:18

Hannes Küttner

908
7
9

this is the output:--- C:\Users\user>flutter doctor --android-licenses A newer version of the Android SDK is required. To update, run: C:\Users\user\AppData\Local\Android\Sdk\tools\bin\sdkmanager --update C:\Users\user>flutter doctor --android-licenses A newer version of the Android SDK is required. To update, run: C:\Users\user\AppData\Local\Android\Sdk\tools\bin\sdkmanager --update C:\Users\user>C:\Users\user\AppData\Local\Android\Sdk\tools\bin\sdkmanager --update Exception in thread "main" java.lang.NoClassDefFoundError: – raman raman Oct 08 '19 at 02:43
1

That seems very similar to the issues others are describing in the issue thread. Could you try their solutions and see if any of them fixes your problem? It seems maybe pointing your JAVA_HOME to the JRE installed with Android Studio might help. Since I cannot reproduce your error I am wildly guessing here. – Hannes Küttner Oct 08 '19 at 04:58
Why SDK component Set up says An existing SDK was detected.System will only download missing or outdated SDK components – raman raman Oct 08 '19 at 10:40

score 0 · Answer 5 · answered Jan 15 '20 at 17:52

0

I had the same problem

You can resolve this issue by running this command

flutter doctor --android-licenses

into your flutter_console.bat

Or

uninstall the android studio and reinstall it, it will fix the issue.

answered Jan 15 '20 at 17:52

Kashif Bhatti

1
1
1
1

score 0 · Answer 6 · edited Aug 18 '20 at 20:43

0

Add env variable ANDROID_SDK_ROOT as the path where the sdk was installed to.

edited Aug 18 '20 at 20:43

A Jar of Clay

5,622
6
25
39

answered Aug 18 '20 at 11:56

Faizal Mp

1

score 0 · Answer 7 · edited Sep 20 '20 at 14:28

This solved the problem for me:

open Android Studio and open SDK Manager then SDK Tools tab. check the box "Android SDK Command-line Tools
Open the command prompt and type flutter doctor --android-licenses then press enter
It is going to ask you to type 'Y' for each license. type 'y' until all the licenses are done.
now check with flutter doctor again in the command prompt and it should tell you that license is accepted.

score 0 · Answer 8 · edited Jul 14 '21 at 17:36

0

Open Android Studio and open SDK Manager then SDK Tools tab.
Check the box Android SDK Command-line Tools

edited Jul 14 '21 at 17:36

General Grievance

4,555
31
31
45

answered Sep 28 '20 at 14:25

Renan Sued

1

score 0 · Answer 9 · edited Oct 25 '20 at 19:40

0

What worked for me was to delete the Android 30 file in the following directory:

C:\Users\user\AppData\Local\Android\Sdk\platform

After that, I went to File > Settings > System Settings > SDK platforms.

Then I checked the Android 11.0® option, and finally clicked Apply.

edited Oct 25 '20 at 19:40

Jeremy Caney

7,102
69
48
77

answered Oct 25 '20 at 08:10

Toyib Mustapha

39
1

score 0 · Answer 10 · answered Jan 02 '21 at 10:30

0

Installing Android SDK command line tools in SDKs tools on Android studio worked for me

answered Jan 02 '21 at 10:30

Eyayu Tefera

771
9
9

score -1 · Answer 11 · answered May 30 '21 at 23:35

-1

After installing Android SDK command line tools in the tools SDKs of Android Studio, execute the command flutter doctor --android-licenses

answered May 30 '21 at 23:35

Valéria Pereira

1

1

How does the guidance in this answer differ from the guidance in the other answers already posted here? – Hoppeduppeanut May 31 '21 at 05:35

Even after updating Flutter doctor says Try re-installing or updating your Android SDK Manager

11 Answers11