NoClassDefFoundError for apache/commons/lang/StringUtils

Question

I want to use commons-lang3 in my project, with Android Studio.

Here is my gradle configuration:

compile group: 'org.apache.commons', name: 'commons-lang3', version: '3.4'

Gradle build is done without error, I can use StringUtils. But in runtime, app crashes with this error:

 java.lang.NoClassDefFoundError: Failed resolution of: Lorg/apache/commons/lang/StringUtils;

I also tried with .jar in lib folder but I get the same error.

Answer 1

change your gradle file to this:

implementation 'org.apache.commons:commons-lang3:3.6'

then you can use this import in your classes:

import org.apache.commons.lang3.StringUtils;