I am Trying to set up Eclipse with all its great features as my Latex editor by using TeXLipse. Everything seems to be working fine (tested with SumatraPDF) but Pdf4Eclipse, which I totally want for the "update while writing" feeling.
What I figured out from asking Google till now is: Pdf4Eclipse is not to be selected as Viewer in Texlipse, it is ought to be selected as the default viewer within Eclipse by klicking:
Window > Preferences: General > Editors > File Associations; select *.pdf and choose Pdf4Eclipse - but it is not there.
It is installed though, it has an entry in the preference settings. So the question is: Why is it not there, what did I do wrong )-:
Edit: Error log (please note my initial learning curve and the desperate spamming of install commands at the end):
!SESSION 2012-10-08 18:42:10.267 -----------------------------------------------
eclipse.buildId=M20120914-1800
java.version=1.7.0_07
java.vendor=Oracle Corporation
BootLoader constants: OS=win32, ARCH=x86_64, WS=win32, NL=de_DE
Command-line arguments: -os win32 -ws win32 -arch x86_64
!ENTRY net.sourceforge.texlipse 4 4 2012-10-08 18:44:59.172
!MESSAGE Could not start previewer 'itexmac'. Please make sure you have entered the correct path and filename in the viewer preferences.
!STACK 0
java.io.IOException: Cannot run program "" (in directory "C:\Users\Felix\workspace\test"): CreateProcess error=2, Das System kann die angegebene Datei nicht finden
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at net.sourceforge.texlipse.viewer.ViewerManager.execute(ViewerManager.java:555)
at net.sourceforge.texlipse.viewer.ViewerManager.execute(ViewerManager.java:377)
at net.sourceforge.texlipse.viewer.ViewerManager.preview(ViewerManager.java:133)
at net.sourceforge.texlipse.viewer.TexLaunchConfigurationDelegate.launch(TexLaunchConfigurationDelegate.java:68)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:855)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:704)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1047)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1251)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.io.IOException: CreateProcess error=2, Das System kann die angegebene Datei nicht finden
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
... 11 more
!ENTRY net.sourceforge.texlipse 4 4 2012-10-08 18:48:07.453
!MESSAGE Could not start previewer 'itexmac'. Please make sure you have entered the correct path and filename in the viewer preferences.
!STACK 0
java.io.IOException: Cannot run program "" (in directory "C:\Users\Felix\workspace\test"): CreateProcess error=2, Das System kann die angegebene Datei nicht finden
at java.lang.ProcessBuilder.start(Unknown Source)
at java.lang.Runtime.exec(Unknown Source)
at net.sourceforge.texlipse.viewer.ViewerManager.execute(ViewerManager.java:555)
at net.sourceforge.texlipse.viewer.ViewerManager.execute(ViewerManager.java:377)
at net.sourceforge.texlipse.viewer.ViewerManager.preview(ViewerManager.java:133)
at net.sourceforge.texlipse.viewer.TexLaunchConfigurationDelegate.launch(TexLaunchConfigurationDelegate.java:68)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:855)
at org.eclipse.debug.internal.core.LaunchConfiguration.launch(LaunchConfiguration.java:704)
at org.eclipse.debug.internal.ui.DebugUIPlugin.buildAndLaunch(DebugUIPlugin.java:1047)
at org.eclipse.debug.internal.ui.DebugUIPlugin$8.run(DebugUIPlugin.java:1251)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:53)
Caused by: java.io.IOException: CreateProcess error=2, Das System kann die angegebene Datei nicht finden
at java.lang.ProcessImpl.create(Native Method)
at java.lang.ProcessImpl.<init>(Unknown Source)
at java.lang.ProcessImpl.start(Unknown Source)
... 11 more
!ENTRY org.eclipse.equinox.p2.operations 4 0 2012-10-08 18:58:11.796
!MESSAGE Operation details
!SUBENTRY 1 org.eclipse.equinox.p2.operations 4 10050 2012-10-08 18:58:11.796
!MESSAGE Cannot complete the request. See the error log for details.
!SUBENTRY 1 org.eclipse.equinox.p2.operations 2 10005 2012-10-08 18:58:11.796
!MESSAGE "PDF4Eclipse" will be ignored because it is already installed.
!ENTRY org.eclipse.equinox.p2.operations 4 0 2012-10-08 18:58:11.799
!MESSAGE Operation details
!SUBENTRY 1 org.eclipse.equinox.p2.operations 4 10050 2012-10-08 18:58:11.799
!MESSAGE Cannot complete the request. See the error log for details.
!SUBENTRY 1 org.eclipse.equinox.p2.operations 2 10005 2012-10-08 18:58:11.799
!MESSAGE "PDF4Eclipse" will be ignored because it is already installed.'
Edit 10.10.2012:
I verified this behavior with another Eclipse Version 3.8 instead of 4.2 (both Platform runtime binary version) on Win XP (instead of Vista). No error log was generated during startup. Maybe I should file a bug report at github.org?