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I am an app developer and I am trying to help a customer move a file from their iPhone in Document sharing.

They take the following steps: iTunes Steps

But receive the following error:

<file> could not be copied because its name is too long or includes characters that are invalid on the destination volume

(<file> could not be copied because its name is too long or includes characters that are invalid on the destination volume)

The longest file name in the folder will be something like: CoreDataUbiquitySupport/mobile\~B63CA3F9-0971-4F53-AF50-B1F792DDEFFE/iCloudStore/BC2FFBEC-33FA-4157-9F89-5D16429878C1/container/mobile\~B63CA3F9-0971-4F53-AF50-B1F792DDEFFE/iCloudStore/dITgSOv1a\~uXwdg84VBrJ5ksgQRT7WHwf7B9JLbKre8\= those random strings should all be the same length (232 chars total).

They tell me they are on the latest version of iTunes and Windows 7.

I can't find anything on google for this error.

Any help hugely appreciated.

[Apologies if this isn't the best place for this question, suggestions for where is the best place very much welcome. The general Apple Support forums which is where I assumed would be best have told me not to post there..]

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lewis
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    We'd really need to know the filename & full path to be certain, but Acronis has a nice KB on x-plat illegal chars, & Apple a Best x-plat Practices KB – Tetsujin Oct 13 '15 at 19:59
  • Thanks for this, I've added an example full filename to the question. I guess it's the length that's the problem. I'm not sure at what stage they get the error, but maybe if I get them to save it to C:\ instead of My Documents or wherever it might work. – lewis Oct 13 '15 at 20:13
  • I'm wondering how it is handling the escapes ~ = etc, as the \ itself is an illegal character - or are those for 'our' benefit, as they're not actually needed for human legibility in an SE code block – Tetsujin Oct 14 '15 at 04:53
  • Thanks for all your help @Tetsujin. This is the path I get on my Mac when connected to the simulator, I'm not sure if the 's are part of the path or added by terminal. I know terminal would escape a space – lewis Oct 14 '15 at 16:06
  • Brief update: my original customer with this problem updated to Windows 10 and that solved it for them. I now have another customer with the same problem though :( – lewis Nov 14 '15 at 21:32
  • @Tetsujin the article is not up-to-date, as : is nowadays allowed: https://apple.stackexchange.com/questions/173529/when-did-the-colon-character-become-an-allowed-character-in-the-filesystem – Cœur Jan 11 '18 at 06:06

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