1602 - Concurrency Group '%s' has no limits defined.

Description
Concurrency Groups defined in Settings() must specify at least one limit in order to be effective.
Example
Config:
Settings { .Group1 = [ .ConcurrencyGroupName = 'link' ] .ConcurrencyGroups = { .Group1 } }
Output:
C:\Test\fbuild.bff(1,1): FASTBuild Error #1602 - Settings() - Concurrency Group 'link' has no limits defined. Settings ^ \--here
Fix:
Settings { .Group1 = [ .ConcurrencyGroupName = 'link' .ConcurrencyLimit = 4 ] .ConcurrencyGroups = { .Group1 } }