F-Droid java.io.FileNotFoundException / won't update I'm having the problem, that I can't


install a new app from F-Droid, instead I get 


  java.io.FileNotFoundException: ...

update my package sources, I get something like


  unknown error



(F-Droid is an "installable catalogue of FOSS (Free and Open Source Software) applications for the Android platform.")

In detail:


I'm using Android 4.2.2 on a FairPhone 1
I want to install the OwnCloud synchronization client.
my error message when trying to install the client from F-droid:


  java.io.FileNotFoundException: 
  http://f-droid.org/repo/com.owncloud.android_10500800.apk



What can I do to install the app from F-Droid (to benefit from the updating service)?
What solved my problem was:


I realized, that 


the OwnCloud synchronization client is on version 1.7.2 on the webpage, 
while my F-Droid tries to download version 1.5.8
on the F-Droid webpage there is no version 1.5.8 for the OwnCloud client  
(which may have resulted in the "File not found" exception)

I forced my package sources/repository to reload 
(by changing my repository address to something invalid and back to original and then "update")
I could install the up-to-date OwnCloud client in version 1.7.3 (voila!)


Edit:

On F-Droid 0.96.1 it appears you can't edit existing repositories. You'll have to replace 2. above by


  
  I forced my package sources/repository to reload 
  (e.g. by removing the "F-Droid" archive (note the URL) and re-adding it)