build trouble

[Thorsten Hohage]

Hi Danny,

On 2009-06-16, at 11:20, Danny Lewkin wrote:

> I have build a windows RB version of an app on my mac, put contents of
> vcomponents in dir of .exe file, and guess what, the application runs
> on windows.... except... :-)
>
> Each time i try to connect to a server, I get the errormessage:
>
> The connection could not be established because:
> Valentina is already initialized.
>
> On Mac, this app runs fine without any problems.
> Any idea what's going on here?
> Do I need to build the application with a windows version of RB?


first of all, no you don't need to build on windows, but you should  
debug and "test / log run" in windows. It is common knowledge, or at  
least IMHO it should be common ;-), that apps build with RB are doing  
different things on start up on Mac on Windows. I must have made this  
experience in a painful way several times on my own. So the order of  
events may vary just a little, OR furthermore the timing is different.

Even more bad and especially on windows, the behaviour is different  
when debugging / remote debugging or the app is running. Even writing  
to a log file step by step could change this! So log in memory and  
write the list to file after start up is completed.


2. I would strongly recommend a mutex style of design for the  
"database-context-class" so that it is not possible to try to connect  
twice.


3. Simplest thing to check. Switch of ALL security software,  
especially AV and try to run it again. Are you on Vista? The build in  
virtualization and protection could make life even more harder. Try to  
run it on a XP machine.


regards,

Thorsten Hohage
-- 

Valentina Technology Evangelist
generic objects  GmbH - Leiter Solution Center Nord