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I am using openLCA v.1.9. After creation of product system and calculation,in the results I do not have any process result,contribution tree and etc in the tab.Does any body know the reason?

in openLCA by (560 points)
by (140 points)
I found some negative values in the contribution tree. Even the total is 100%. adding up all factors is not equal to 100%. For transportation, it shows a "question mark".

1 Answer

+1 vote
by (4.4k points)
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Dear Zoli,

when you do the calculation, choose "Analysis" instead of "Quick results", that should give you the missing tabs.
by (560 points)
Dear Tim,
Thank you so much ,Its true.