The fragment module must specify the exact version of the host module. A Liferay DXP upgrade might have changed some JSPs in the host module, prompting a version update. If this occurs, check that your JSP customizations are compatible with the updated host JSPs and then update your fragment module’s targeted version to match the host module.
For example, this bnd.bnd file from a fragment module uses Fragment-Host to
specify the host module and host module version:
Bundle-Name: custom-login-jsp
Bundle-SymbolicName: custom.login.jsp
Bundle-Version: 1.0.0
Fragment-Host: com.liferay.login.web;bundle-version="1.1.18"
For information on finding the versions of your deployed modules, click here.
For more information on overriding JSPs, click here.