Yes, this because of your .jar
file didn’t import properly. Follow below steps –
-
Place your
.jar
file in your project’slibs
folder . -
Import it into your project. And, GoTo project -> properties -> Java build path -> order tab.
-
Check, whether your
.jar
file checked and placed in order of 1st. This is the main thing.
Hope these steps helps you. Have a look at below image –