Android sdkmanager tool not found

Question

I newly started using Ubuntu 18.0 LTS this week, switching from Windows, and wanted to install Android Studio and Flutter back. I followed all the steps as said to install Android Studio and it is working fine with all the SDKs. However, when I wanted to install Flutter, it gives exception:

Doctor summary (to see all details, run flutter doctor -v):
Unhandled exception:
Exception: Android sdkmanager tool not found (/usr/lib/android-sdk/tools/bin/sdkmanager).
Try re-installing or updating your Android SDK,
visit https://flutter.io/setup/#android-setup for detailed instructions.

Ask for the stacktrace if you need it.

The closest issue I could find was: How to install SDK manager on linux ubuntu 16.04? but I couldn't really understand how to work the instructions. I might need you to be really clear in the instructions because I'm new to the linux platform.

tools/package.xml :

<ns2:repository xmlns:ns2="http://schemas.android.com/repository/android/common/01"
            xmlns:ns3="http://schemas.android.com/sdk/android/repo/addon2/01"
            xmlns:ns4="http://schemas.android.com/sdk/android/repo/sys-img2/01"
            xmlns:ns5="http://schemas.android.com/repository/android/generic/01"
            xmlns:ns6="http://schemas.android.com/sdk/android/repo/repository2/01">
      <license id="apache-2.0" type="text">Please refer to Apache v2.0 license</license>
  <localPackage path="tools" obsolete="false">
<type-details xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
              xsi:type="ns5:genericDetailsType"/>
<revision>
  <major>25</major>
  <minor>0</minor>
  <micro>0</micro>
</revision>
<display-name>Android SDK Tools</display-name>
<uses-license ref="apache-2.0"/>
<dependencies>
  <dependency path="platform-tools">
    <min-revision>
      <major>20</major>
    </min-revision>
  </dependency>
</dependencies>
  </localPackage>
 </ns2:repository>

Flutter doctor -v output:

[✓] Flutter (Channel beta, v0.7.3, on Linux, locale en_IN)
• Flutter version 0.7.3 at /home/andi/Downloads/flutter
• Framework revision 3b309bda07 (13 days ago), 2018-08-28 12:39:24 -0700
• Engine revision af42b6dc95
• Dart version 2.1.0-dev.1.0.flutter-ccb16f7282

[!] Android toolchain - develop for Android devices (Android SDK 28.0.2)
• Android SDK at /home/andi/Android/Sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-28, build-tools 28.0.2
• ANDROID_HOME = /home/andi/Android/Sdk
• Java binary at: /home/andi/Downloads/android-studio-ide-173.4907809-linux/android-studio/jre/bin/java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)
! Some Android licenses not accepted.  To resolve this, run: flutter doctor --android-licenses

[✓] Android Studio (version 3.1)
• Android Studio at /home/andi/Downloads/android-studio-ide-173.4907809-linux/android-studio
• Flutter plugin version 28.0.1
• Dart plugin version 173.4700
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1024-b01)

[!] Connected devices
! No devices available

! Doctor found issues in 2 categories.

Answer 1

I had this issue after installed on my KUbuntu.

You need to open AndroidStudio then go to Tools -> SDK Manager then go to SDK Tools tab, uncheck the option Hide Obsolete Packages

You will see the option of Android SDK Tools (Obsolete), check the option and continue the process download and installation.