A merge request was made as a root extension request. This is not allowed

[ALfreSara]

Hello,

We made two extension for document library. First , extension with configuration fi file share-config-custom.xml by add some action, Seconde , extends the webScript of documentlibrary , for adding the custom vue ,

But when we start the share projet We receive this error.

ERROR [org.springframework.extensions.surf.extensibility.impl.ExtensibilityModelImpl] [http-apr-9090-exec-12] A merge request was made as a root extension request. This is not allowed

Thank you.

[venur]

You see this error when any default component, WebScript etc. is not extended via proper recommend way. 
Look for dev extension docs and try to extend as suggested.