How to Solve these errors

Hi,

[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.StashImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.RefappImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.JiraImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.FecruImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.ConfluenceImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.BitbucketImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.imports.BambooImport] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.export.ModuleType] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.StashComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.RefappComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.JiraComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.FecruComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.ConfluenceComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.ClasspathComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.BitbucketComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!
[ERROR] Found a type [com.atlassian.plugin.spring.scanner.annotation.component.BambooComponent] annotated as a component, but the type is not a concrete class. NOT adding to index file!!

Anyone Help me? and am using Jira 7.13.0

Can you tell us what the problem? This looks like the output from the build process but what are you seeing as the output from the errors?