Imported project in cuba7 doesn't run properly

Error:org/apache/tools/ant/taskdefs/Ant, while bulid my project i got this error. I changed the version to cuba 7.0.1 and migrated. But it can’t be run properly. how to solve this…?

Thanks…!

Hi.
Could you please provide more information about your problem? It will be helpful if you share full stacktrace of the exception.
Full Idea log could be found here:
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