> For the complete documentation index, see [llms.txt](https://n-saikiran.gitbook.io/appium-mobile-automation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://n-saikiran.gitbook.io/appium-mobile-automation/prerequisites.md).

# Pre-requisites for Appium Verification

**Appium** is an *open source* test automation tool for mobile applications. It allows you to test all the three types of mobile applications: *native*, *hybrid* and *mobile web*.

You must have Java jdk, Android SDK and gradle installed in the folders. Please, perform the checks as in your computer:

`C:\Program Files\Java\jdk1.X.X_XX\`

`C:\Users{username}\AppData\Local\Android\sdk\`

`C:\Program Files\Android\Android Studio\gradle\gradle-X.X\`

Set up three new system variable (Control Panel\System and Security\System Advance system ->settings->environment variables-system variables). Do not forget to change java and gradle versions.

> JAVA\_HOME C:\Program Files\Java\jdk1.X.X\_XX
>
> ANDROID\_HOME C:\Users{username}\AppData\Local\Android\sdk
>
> GRADLE\_HOME C:\Program Files\Android\Android Studio\gradle\gradle-X.X\\

Add the following paths to system paths (Control Panel\System and Security\System Advance system ->settings->environment variables-system variables):

> `%JAVA_HOME%`
>
> `%ANDROID_HOME%\tools\`
>
> `%ANDROID_HOME%\platform-tools`
>
> `%GRADLE_HOME%\bin`

Close and open once again your Dos application (Cmd terminal, etc.). You might want to REBOOT your computer, to make sure, that the system sees the variables. If you do not want to reboot, you can use the advice of @wordsforthewise

* ```
  doskey android=C:\Users\{username}\AppData\Local\Android\sdk\tools\android.bat $*
  ```

Check if Android SDK and gradle work properly with the terminal commands

> `$ java -version`
>
> `$ android list target`
>
> `$ gradle -v`

.