I am a relative newcomer to SugarCRM development. I am trying to create a package (in Version 6.3.1) with several modules but cannot see the results in the Rename Modules or Configure Grouped Modules tools. I can recreate my problem by simply creating a package (PackageX) and populating it with a single Sugar Module (Module1). Everything appears to go well. I can Export or Publish PackageX with no apparent problems. But when I try to assign the modules to my CRM page tabs, I see nothing.

When I look in the Display Module Tabs tool, the Module is listed (under Displayed Tabs) as [Key]_Module1, not the Module1 "Module Name" it was given.

In my sugarcrm.log I am seeing the following when I try to use the Module Loader to install any (previously Exported/Published) package:

Mon Feb 20 13:35:04 2012 [11579][c9739ee4-5adf-1275-8ea2-4f0351306383][FATAL] HTTP Error: no data present after HTTP headers
Mon Feb 20 13:35:04 2012 [11579][c9739ee4-5adf-1275-8ea2-4f0351306383][FATAL] HTTP/1.1 100 Continue

HTTP/1.1 500 Internal Server Error
Server: nginx
Date: Mon, 20 Feb 2012 18:35:04 GMT
Content-Type: text/html
Connection: keep-alive
X-Application-Server: 10.13.10.129
Content-Length: 0


Mon Feb 20 13:35:04 2012 [11579][c9739ee4-5adf-1275-8ea2-4f0351306383][FATAL] HTTP Error: no data present after HTTP headers
Mon Feb 20 13:35:04 2012 [11579][c9739ee4-5adf-1275-8ea2-4f0351306383][FATAL] HTTP/1.1 100 Continue

HTTP/1.1 500 Internal Server Error
Server: nginx
Date: Mon, 20 Feb 2012 18:35:04 GMT
Content-Type: text/html
Connection: keep-alive
X-Application-Server: 10.13.10.129
Content-Length: 0


Mon Feb 20 13:35:05 2012 [11579][c9739ee4-5adf-1275-8ea2-4f0351306383][FATAL] HTTP Error: no data present after HTTP headers
Mon Feb 20 13:35:05 2012 [11579][c9739ee4-5adf-1275-8ea2-4f0351306383][FATAL] HTTP/1.1 500 Internal Server Error
Server: nginx
Date: Mon, 20 Feb 2012 18:35:05 GMT
Content-Type: text/html
Connection: keep-alive
X-Application-Server: 10.13.10.129
Content-Length: 0

Have I trashed something beyond repair? Is there a fix available for my PackageX? It may be useful to note that I first started seeing this in another package where I created, then subsequently deleted several modules. Is it possible something got corrupted there?