The error appears after calling ant build command with eclipse and it is known issue after eclipse upgrade.
How to repair
It is enough to ‘Restore Defaults‘ settings of ant Runtime in Eclipse Window -> preferences. As for now it is just a workaround (the eclipse issue is still opened for it):
Ensure that you have proper Ant configuration in eclipse
Make sure that eclipse has ant plugin installed. If not – follow instructions at the bottom of this page: Troubleshooting Eclipse Installation.
Did I help you?
I manage this blog and share my knowledge for free sacrificing my time. If you appreciate it and find this information helpful, please consider making a donation in order to keep this page alive and improve quality