How to positively describe somebody who misled you by accident

Consider this scenario, of two people talking:

A: Did you go to the shops?
B: No, it was closed even though you said it would be open
A: Oh no, I misled you!
B: No, you didn't mislead me, you just _____ me.

'A' was mistaken, but they didn't mislead 'B' (intentionally), but made a genuine mistake in trying to help out. I want 'B' to imply the help was appreciated even if it didn't help out in the end.

To be extra clear, I am only looking for single word answers. Suggestions of rewording the entire exchange are not valid for this question.

Solution 1:

In the context, especially given that the rest of the sentence clarifies that there was no malicious intent, the one-word solution "misinformed" would work well. One can use "misinform" in a context that implies intentional misdirection, but it doesn't have to carry that connotation.

Solution 2:

I would say:

You just made an honest mistake. or
You just made a well-intentioned mistake.

Those seem more appreciative than

You just made an unintentional mistake.

Solution 3:

I'd say that the framing of the question is, er, misleading.

"A: Oh no, I misled you!". A is feeling guilty or insecure, and needs some reassurance. Implictly, A knows that they did mislead you and is admitting to it. What B says will depend a lot on the relationship of B to A. It's not a matter of fitting something into the framework of "No, you didn't mislead me, you just _____ me.".

In fact the heavily downvoted "Australian English" example has this best, but obviously only to a good mate who won't mistake your intent and who shares your vernacular.

In a more formal context, maybe "Don't worry about it" or "No problem".