Unable to open projects in 6.4RC

Hi

Some projects I upgraded to 6.4RC and I’ve been working fine just yesterday today DO NOT open in Cuba Studio.
With message: Unable to open the project, The project uses an application component that is not supported by this version of studio or was not found in both local Maven and Index of /groups/work repository

Sorry, my mistake,

Some problem here with the machinery.
There’s no problem as described.

Thanks