gimp crashes when start

[Henning Thielemann]

When I start Gimp, it crashes with these messages:

$ gimp
sh: 1: tde-config: not found
sh: 1: tde-config: not found
[kcrash] TDECrash: Application 'gimp-gtk-tqt-application' crashing...
[kcrash] Warning: socket connection failed: : Datei oder Verzeichnis nicht gefunden
[kcrash] TDECrash cannot reach tdeinit, launching directly.

It refers to TDE (Trinity Desktop Environment).
I have installed TDE but actually run gimp from Lubuntu/LDE.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: gimp 2.8.16-1ubuntu1.1
ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44
Uname: Linux 4.4.0-66-generic i686
ApportVersion: 2.20.1-0ubuntu2.10
Architecture: i386
Date: Wed Aug 2 10:22:44 2017
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: gimp
UpgradeStatus: No upgrade log present (probably fresh install)