Error
Request URL: GET /w/load.php?lang= … &modules=startup&only=scripts&skin=minerva&target=mobile
Request ID: XQu18gpAMFMAAH7nS2kAAACM
level: WARNING normalised: Failed to find {messageKey} ({lang}) message: Failed to find visualeditor-toolbar-savedialog …
Impact
Unknown.
Notes
This is registered in the GettingStarted extension, but not defined anywhere. Based on the message namespace, I suspect it is meant to (or once was) defined by the VisualEditor extension?
See Codesearch query.