I am getting error "cmdline-tools component is missing" after installing Flutter and Android Studio... I added the Android SDK. How can I solve them?

Android toolchain - I develop for Android devices (Android SDK version 30.0.3):

```lang-none
X cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
See

[To see links please register here]

for more details.
```

[1]:

The solution for me was opening Android Studio and going to *SDK Manager*, switch to the *SDK Tools* tab and check *Android SDK Command-line Tools (latest)*.

[![Enter image description here][1]][1]

Don't forget to add to your PATH the tools and platform-tools folder that are inside your SDK.

[1]:

If what `flutter doctor` said was something like:

```lang-none
[!] Android toolchain - develop for Android devices (Android SDK version 30.0.2)
• Android SDK at /Users/<admin>/Library/Android/sdk
✗ cmdline-tools component is missing
Run `path/to/sdkmanager --install "cmdline-tools;latest"`
```

The `path/to/sdkmanager` for me was:

/Users/<user>/Library/Android/sdk/tools/bin/sdkmanager


So what solved the whole thing for me was running:

/Users/<user>/Library/Android/sdk/tools/bin/sdkmanager --install "cmdline-tools;latest"

My solution process is as follows:

1. `~/Library/Android/sdk/tools/bin/sdkmanager --install "cmdline-tools;latest"`

```lang-none
Exception in thread "main" java.lang.NoClassDefFoundError: javax/xml/bind/annotation/XmlSchema
at com.android.repository.api.SchemaModule$SchemaModuleVersion.<init>(SchemaModule.java:156)
at com.android.repository.api.SchemaModule.<init>(SchemaModule.java:75)
at com.android.sdklib.repository.AndroidSdkHandler.<clinit>(AndroidSdkHandler.java:81)
at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:73)
at com.android.sdklib.tool.sdkmanager.SdkManagerCli.main(SdkManagerCli.java:48)
Caused by: java.lang.ClassNotFoundException: javax.xml.bind.annotation.XmlSchema
at java.base/jdk.internal.loader.BuiltinClassLoader.loadClass(BuiltinClassLoader.java:636)
at java.base/jdk.internal.loader.ClassLoaders$AppClassLoader.loadClass(ClassLoaders.java:182)
at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:519)
... 5 more
```

2. Install Android SDK Command-line Tools in Android Studio:

*Preferences* → *Appearance & Behavior* → *System Settings* → *Android SDK* → *SDK Tools* → *Android SDK Command-line Tools (latest)*

3. `flutter doctor`

```lang-none
Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel stable, 2.5.0, on macOS 11.5.2 20G95 darwin-x64, locale zh-Hans-CN)
[✓] Android toolchain - develop for Android devices (Android SDK version 29.0.3)
[✓] Xcode - develop for iOS and macOS
[✓] Chrome - develop for the web
[✓] Android Studio (version 2020.3)
[✓] IntelliJ IDEA Ultimate Edition (version 2021.2)
[✓] IntelliJ IDEA Ultimate Edition (version 2021.2)
[✓] Connected device (2 available)

• No issues found!
```

If you are a Mac user, just open your terminal and paste:

```lang-none
cd Library/Android/sdk/tools/bin./sdkmanager --install "cmdline-tools;latest"
```

And hit <kbd>Enter</kbd>.

This command will install the latest version of *cmdline-tools*.

Then, run `flutter doctor`, and the error will be gone.

[![Enter image description here][1]][1]

**Easiest solution:**

- Open Android Studio and click settings in the upper left corner of Android studio.
- Search for "SDK tools" in the search box.
- From the SDK tools just check the *Android SDK Platform Tools*.
- Run `flutter doctor` to verify. You can also restart Android Studio if you want. <br/>
I hope the problem will be solved.

[1]:

Android SDK Manager screenshot on Windows

[![Enter image description here][1]][1]

Please see the attached screenshot for installing tools from SDK Manager.

[1]:

For Linux ([Ubuntu][1])

Just copy this command in your terminal and change 'your user name' with your user name without spaces:

```lang-none
/home/your user name/Android/Sdk/tools/bin/sdkmanager --install "cmdline-tools;latest"
```

[1]:

[To see links please register here]

I solved this problem on Windows 10 with the following actions:

1. Run the following command in a Windows command prompt or Flutter console:

```lang-none
flutter config --android-sdk "C:\Users\'your computer name' AppData\Local\Android\Sdk"
```
(you may need to find and enter your own SDK path)

The Android SDK location could be found in the Android Studio application* → *Appearance & Behavior* → *System Settings* → *Android SDK*

2. Open your Android Studio, and then → *File* → *Settings* → *Appearance & Behavior* → *System Settings* → *Android SDK* → *SDK Tools* → download Android SDK Command-line Tools (latest) and you are good to go.

If you have installed the latest cmd-line tools from Android Studio, but it still gives the error, then you should do the following.

If you have installed the Android SDK to a custom directory, then you need to copy the path of your SDK folder. Then you have to go to the edit environment variable, click <kbd>New</kbd> give
a variable name: **ANDROID_SDK_ROOT**. And a variable value: **path of your SDK folder**.
Click <kbd>OK</kbd>.

In the older version of Flutter, this error came with the solution (creating ANDROID_SDK_ROOT), but in the new versions it does not show that.