cfapi: the cloud operation is invalid

Question

Hi, I'm making a Cloud Sync Engines Supports Placeholder based on CloudMirror. And got problem on CF_CALLBACK_TYPE_FETCH_DATA. I try different ways pipe stream , another task in c++\CLR but alway get error from CfExecute 0x8007017c the cloud operation is invalid.
Then how to resolve it?, thank.

Note: CloudMirror can work normally (FETCH_DATA).

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And Adv question, When i edit here to

if (FakeCloudProvider::Start(L"D:\ServerFolder",L"D:\ClientFolder"))

When CloudMirror FETCH_DATA, CfExecute return HRESULT 0x8007018E : The cloud operation was canceled by user.
Look like it not have permission from FileOpenDialog (it not FolderPicker from uwp) then how i can "save" permission?

Answer 1

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