Error: Could not find or load main class org.gradle.launcher.GradleMain

Question

I'm new to Gradle and while trying to install Gradle in my PC with Windows OS, I got the below mentioned error

Error: Could not find or load main class org.gradle.launcher.GradleMain

Only thing I did is that I followed the gradle installation steps given in gradle site Gradle installation and typed

gradle -v

in command prompt and I got the above mentioned exception. Any clue as to what had happened and how to resolve it.

This is what I have done :

1. Downloaded the zip file
2. Copied 'gradle-3.5' from the zip file to a folder I created in C drive (C:\Gradle)
3. Set GRADLE_HOME to 'C:\Gradle\gradle-3.5'
4. Set Path to '%GRADLE_HOME%\bin'
5. Opened cmd and typed gradle -v and got this error

Answer 1

I stopped all the gradle daemons by running ./gradlew --stop and the error was resolved for me.

Answer 2

Basically this means that Gradle can't find your gradle/wrapper/gradle-wrapper.jar.

You have to follow Step 3 and setup environment variables:

Microsoft Windows users

In File Explorer right-click on the This PC (or Computer) icon, then click Properties -> Advanced System Settings -> Environmental Variables.

Under System Variables select Path, then click Edit. Add an entry for C:\Gradle\gradle-3.5\bin. Click OK to save.

Source: https://gradle.org/install#configure

The easiest way, is to simply use gradlew.bat in your project and it will auto download Gradle for you!