IOException when trying to download a new version with Kaju

Targets macOS
1

macOS has become so very odd. I’m getting an IOException when downloading a new app version with Kaju.

The download file is created:

DownloadFile = SpecialFolder.UserHome
if DownloadFile <> nil and DownloadFile.Exists then DownloadFile = DownloadFile.Child("Downloads")
if DownloadFile <> nil and DownloadFile.Exists then DownloadFile = DownloadFile.Child(SelectedBinary.FileName)
if DownloadFile = nil then Return

And then the file is downloaded:

dim path as string = file.NativePath.DefineEncoding( Encodings.UTF8 )
dim f as new Xojo.IO.FolderItem( path.ToText )
super.Send "GET", url.ToText, f

The second line makes the IOException:

2021-05-30 11:22:08 Type of Error: Xojo.IO.IOException
2021-05-30 11:22:08 Error Number: 0
2021-05-30 11:22:08 Error Message: This file could not be opened

I can’t really say why the folderitem needs to be defined as utf8. The only part of the file that might be problematic is the filename.

Is this a case again of “macOS has lost access to folder xyz”? For now I’ve asked the user to restart the computer.

Does anyone have an idea what might going on here?

2

In the first part, you put the downloadble file into DownloadFile

DownloadFile = DownloadFile.Child(SelectedBinary.FileName)

The second part you refer to just ‘file’

path as string = file.NativePath

3

Code is from Kem and is not mine. But yes, I would do the same change. And perhaps do a DefineEncoding on the filename.

So far I have only one user with this problem.

4

I’ll have to confirm, but that first block doesn’t seem like my code. I typically don’t use one line If statements or comparisons to nil. (if x is nil then)

5

Yes, the first part is my own code because I download a dmg and not a zip file. Here is the original code:

dim tempFolder as FolderItem = Kaju.GetTemporaryFolder
DeleteOnCancel.Append tempFolder

DownloadFile = tempFolder.Child( SelectedBinary.FileName )