Bug#862866: upgrade-reports: Error message after installation/Upgrade (Synaptic)

[Geo Pe <yw5kv6ktlxl@temp.mailbox.org>]

Package: upgrade-reports
Severity: normal

Dear Maintainer,

*** Reporter, please consider answering these questions, where appropriate ***

   * What led up to the situation?
	I upgraded from stable to testing. Try to install/upgrade various packages 

   * What exactly did you do (or not do) that was effective (or
     ineffective)?
	Tried to install netbeans. The problem is repeaded with other packages. 
   * What was the outcome of this action?
	Netbeans was installed but i got the following message after installation:

	"W: Download is performed unsandboxed as root as file '/var/cache/apt/archives/partial/libminizip1_1.1-8+b1_amd64.deb' couldn't be accessed by user '_apt'. - pkgAcquire::Run (13: Permission denied)"

   * What outcome did you expect instead?
	Message for successfull installation.


*** End of the template - remove these template lines ***


-- System Information:
Debian Release: 9.0
  APT prefers testing
  APT policy: (500, 'testing')
Architecture: amd64
 (x86_64)

Kernel: Linux 4.9.0-3-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.utf8, LC_CTYPE=en_US.utf8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)