Please delete the ic2 folder inside the thaumcraft zip.
that helped but i went in the ic2 jar and copied the CropCard.zip and pasted it over the one in thaumcraft. hope this helps. 
.
Please delete the ic2 folder inside the thaumcraft zip.
that helped but i went in the ic2 jar and copied the CropCard.zip and pasted it over the one in thaumcraft. hope this helps. .