I have android app and this string in resources:
Select up to %1$d people!
Thi
This error will be shown if you have the same string in multiple string files (translations), but one of them doesn't have proper format like missing "%s" or "%1$s", which will be used to place paramters passed (ex: "countMax") in below line.
getResources().getString(R.string.create_group_select_people, countMax)
So, please check that before you are going to try any other answers mentioned above.