Error creating thumbnail! Error code: 6

[tehtide]

Getting this error with imagemagick as the image processor and trying to upload a png file.

I can do the upload just fine under GD2.

Any ideas? Is there a library that I need to install for png files?

[Chuck S]

Yes it would appear your imagemagick does not support png files. You need to totally recompile imagemagick and the necessary libraries to use imagemagick otherwise stick with GD2

PhotoPost PHP Photo Sharing Photo Gallery ImageMagick Installation Guide

[tehtide]

I recompiled with the instructions you provided Chuck, and the PNG lib compiled ok but still the same error.

Is there a way I can test if png support is installed with imagemagick?

[Chuck S]

As long as there are no errors you should be okay on compile but those instructions essentially come from Imagemagick site since your dealing with their server software and its installation. If things work with GD2 then there has to be an issue compiling Imagemagick with PNG support on that server. You can see when running the configure command via ssh scan back when its done and see what support was enabled.

[tehtide]

This is what I get:

ImageMagick is configured as follows. Please verify that this configuration
matches your expectations.

Host system type : i686-redhat-linux-gnu

Option Value
-------------------------------------------------------------------------
Shared libraries --enable-shared=yes yes
Static libraries --enable-static=no no
Module support --with-modules=no no
GNU ld --with-gnu-ld=yes yes
Quantum depth --with-quantum-depth=16 16

Delegate Configuration:
BZLIB --with-bzlib=yes yes
DPS --with-dps=yes yes
FlashPIX --with-fpx=no no
FreeType 2.0 --with-ttf=yes yes
GhostPCL None pcl6 (unknown)
Ghostscript None gs (unknown)
Ghostscript fonts --with-gs-font-dir=default none
Ghostscript lib --with-gslib=no no
Graphviz --with-dot=yes no
JBIG --with-jbig=yes no
JPEG v1 --with-jpeg=yes yes
JPEG-2000 --with-jp2=yes no
LCMS --with-lcms=yes no
Magick++ --with-magick-plus-plus=yes yes
PERL --with-perl=no no
PNG --with-png=yes yes
TIFF --with-tiff=yes yes
Windows fonts --with-windows-font-dir= none
WMF --with-wmf=yes no
X11 --with-x= yes
XML --with-xml=yes yes
ZLIB --with-zlib=yes yes

X11 Configuration:
X_CFLAGS =
X_PRE_LIBS = -lSM -lICE
X_LIBS = -L/usr/X11R6/lib
X_EXTRA_LIBS =

Options used to compile and link:
PREFIX = /usr/local
EXEC-PREFIX = /usr/local
VERSION = 6.2.3
CC = gcc
CFLAGS = -g -O2 -Wall -pthread
CPPFLAGS = -I/usr/local/include
PCFLAGS =
DEFS = -DHAVE_CONFIG_H
LDFLAGS = -L/usr/local/lib -L/usr/X11R6/lib -lfreetype -lz -L/usr/lib
LIBS = -lMagick -ltiff -lfreetype -ljpeg -lpng -ldpstk -ldps -lXext -lXt -lSM -lICE -lX11 -lbz2 -lxml2 -lz -lpthread -lm -lpthread
CXX = g++
CXXFLAGS = -pthread

So png is being compiled into Imagemagick... this is a head scratcher for sure.

[tehtide]

Ok... I got it to work.

went and downloaded the latest libpng and compiled.

In ImageMagick:

Make uninstall
make clean
./configure --enable-lzw=yes --enable-shared=yes --disable-static --without-perl
make
make install

Works good now. thanks for the help

[Chuck S]

yep problem with your png library on the server