Blank Tech Screen on Game Start

[ripple01]

OK, so I am running into an error with certain civilizations in my mod. When I go to start the game, I get a blank tech screen and no interface. I got the following out of PythonErr.log

Traceback (most recent call last):

File "CvAppInterface", line 84, in preGameStart

File "CvScreensInterface", line 88, in showTechChooser

File "CvTechChooser", line 154, in interfaceScreen

File "CvTechChooser", line 235, in placeTechs

RuntimeError: unidentifiable C++ exception
ERR: Python function preGameStart failed, module CvAppInterface


The relevant line in CvTechChooser

screen.addDDSGFCAt( szUnitButton, szTechRecord, gc.getPlayer(gc.getGame().getActivePlayer()).getUnitButton(eLoopUnit), iX + fX, iY + Y_ROW, TEXTURE_SIZE, TEXTURE_SIZE, WidgetTypes.WIDGET_PEDIA_JUMP_TO_UNIT, eLoopUnit, 1, True )


Can anyone help me figure out what is going on here? It looks like something with placing the tech button for the unique unit, but I can't suss out the problem fully. Would greatly appreciate anyone else's insights...

Thanks,
ripple01

 

[Dresden]

One note: gc.getPlayer(gc.getGame().getActivePlayer()) is a little extra work for getting the active player object. I would use gc.getActivePlayer() instead.

Anyhow, as for your problem, if the problem is missing art or an undefined symbol in your XML, davidlallen's civchecker utility may help track it down.

 

[ripple01]

If I'm not mistaken, the line in question is from Firaxis... would changing it to what you suggest possibly fix my problem?

I have used the civchecker utility, and it has helped me track down numerous problems, but I can't find anything related to this issue. It is only happening with certain civs, China, Dutch, and Ottoman...

Cheers,
ripple01

 

[Ninja2]

I just ran into this one today. It is actually an XML error, but the program doesn't find it when starting up... for me, it was an incorrect reference in CIV4UnitArtStyleTypeInfos.xml. I had referenced an entry in the CIV4ArtDefines_Unit.xml which didn't exist. I think you then get the python errors, because the pedia will fail due to the missing art.

 

[ripple01]

Yep, I figured that out as well, same exact thing in my situation.

Cheers,
ripple01