Promoting Table Error

I get Error dialog window saying "This table cannot be promoted." when I attempt to promote a jchembase table with cartridge index.  I already have 3 jchembase tables with cartridge index configured and operation.

 

IJC 6.0.2 on Windows 7 64bit

Found a solution:

1. Dropped jchem cartridge index on jchembase table

2. Promotoed table in IJC

3. Created jchem cartridge index on jchembase table