start up warnings - what do I do with them?

[Curtis L. Engelbrecht]

I was trying to export my txf records, and gnucash crashed.. I started 
gnucash in a terminal to capture the output, but on startup, received 
165  pairs of these warnings:

Warning: xaccTransFindOldCommonCurr...(): unable to find a common 
currency, and that is strange.
Warning: xaccTransScrubCurrency: no common transaction currency found

I don't normally start from a terminal, so its possible I've had these 
warnings for a while, and not seen them. Until the txf export crash, I 
haven't experienced any problems running gnucash, notwithstanding the 
warnings. I'm currently running FC3 and 1.8.9. I've looked in the 
archives, but the few hits don't seem to address the problem. 

Any suggestions on what to look for? Would upgrading to 1.8.10 be wise 
at this time with these errors? 

Thanks, Curt

-- 
Curtis L. Engelbrecht
curtengelbrecht at cox.net