I'm trying to deploy my spfx app to the app catalog and after I upload it it appears in the app catalog in the 'Unavailable Apps' view with the Error message :
Invalid SharePoint App package. Error: Unable to cast object of type 'Microsoft.SharePoint.ClientSideFramework.SPClientSideComponentMetadata' to type 'Microsoft.SharePoint.ClientSideComponent.SPClientSideComponentMetadata
I've deployed the app many times previously and it worked. What does this message mean?