This is an error your FTP server is returning. Either the username/password can't be used for downloading the file, or the file doesn't exist in that folder on the server.
Try downloading that exact url in your browser. Does it download?
FTP 550 errors - downloading update
If I build version 1 of my app and install the client.wyc file in my apps folder updates proceed OK.
When I build version 1.1,. and upload with wyBuild, I am notified that there is an update but when I click 'Download and Install now' I get:
Error trying to save file: Error downloading "ftp://username:password@ftp.myservercom/easy7.2.7.2.3952.to.7.2.3955.63331.wyu": The remote server returned an error: (550) File unavailable (e.g., file not found, no access).
I'm using AutomaticUpdater.dll/wyBuild versions 2.6.9
Incidentally, if I download wyBuild installer from the website, wyUpdate is name 'InstantUpdate' and the version is 2.6.8, not sure if that matters....
At first glance I thought the same, but I can download the files just fine with either an ftp client or web browser.
The ftp user logs in correctly then the ftp server error log says wtmp /var/log/wtmp : no such file or directory
Odd thing is I've had this working for months with the same ftp server.
I'll give another ftp server a try and see if that makes a difference.
We haven't changed the downloading code in a while. It sounds like the server file is downloading fine, but the update file is failing to download. Did you only upload the server file?
That is, try reuploading your files. The server file might be out of sync with your update files.