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  1. DZone
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  4. Eclipse Profile Configuration: The Launch Requires at Least One Data Collector

Eclipse Profile Configuration: The Launch Requires at Least One Data Collector

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Jakub Holý user avatar
Jakub Holý
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May. 14, 10 · Interview
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I just installed TPTP into my Eclipse 3.5 under Ubuntu 9.04 and tried to profile a class. The Profile Configuration opened with a red warning reading “the launch requires at least one data collector to be selected“. Clicking the configuration’s Monitor tab reveals a more detailed error (and nothing to select):

IWATO435E An error occured when connecting to the host.

A quick check of the error log (Window – Show View – Other… – General – Error Log) reveals the cause:

RAServer generated the following output:  [Error Stream]:ACServer: error while loading shared libraries: /home/jholy/development/tools/eclipse-ide/pulse2-2.4.2/Common/plugins/org.eclipse.tptp.platform.ac.linux_ia32_4.4.202.v201002100300/agent_controller/bin/../lib/libtptpUtils.so.4: file too short

Checking the content of the lib/ folder revealed an interesting thing:

-rw-r–r– 1 jholy jholy   17 2010-02-16 23:16 libtptpUtils.so
-rw-r–r– 1 jholy jholy   21 2010-02-16 23:16 libtptpUtils.so.4
-rwxr-xr-x 1 jholy jholy 100K 2010-02-16 23:16 libtptpUtils.so.4.5.0

As also the content of the two small files suggests (they contain a name of the corresponding file with a longer name), the *.so and *.so.4 files should have been links but the installer failed to create them.

Solution

List all files in the lib/ folder, you will see that there are many real files like libtptpUtils.so.4.5.0 and libxerces-c.so.26.0 and many should-be-links files. The solution is, of course, to replace all those files that shoud be links with actual links.

For me the solution was:

$ cd .../plugins/org.eclipse.tptp.platform.ac.linux_ia32_4.4.202.v201002100300/agent_controller/lib
# Move out the files that are OK
lib$ mkdir tmp
lib$ mv libswt-* libcbe.so tmp/
# Fix the links
lib$ for FILE in `ls *.so`; do ln -sf "${FILE}.4.5.0" $FILE; ln -sf "${FILE}.4.5.0" "${FILE}.4"; done
# Move the correct files back
lib$ mv tmp/* .
lib$ rmdir tmp
# Fix links for files with *.26 instead of *.4.5.0
lib$ ln -sf libxerces-c.so.26.0 libxerces-c.so.26
lib$ ln -sf libxerces-c.so.26.0 libxerces-c.so
lib$ ln -sf libxerces-depdom.so.26.0 libxerces-depdom.so.26
lib$ ln -sf libxerces-depdom.so.26.0 libxerces-depdom.so
lib$ rm libxerces-depdom.so.4 libxerces-c.so.4
# Done!

Try to open the profile configuration now, the IWATO435E should have disappeared and you should be able to select a data collector.

If not, restart Eclipse, try again, check the error log.

My environment

  • Ubuntu 9.04
  • Eclipse 3.5
  • TPTP – see above

 

From http://theholyjava.wordpress.com/2010/05/13/eclipse-profile-configuration-the-launch-requires-at-least-one-data-collector/

Eclipse Profile (engineering) Data (computing)

Opinions expressed by DZone contributors are their own.

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  • Domain-Driven Design: Manage Data With Jakarta Data and JNoSQL
  • Unleash Peak Performance in Java Applications: Overview of Profile-Guided Optimization (PGO)
  • Collecting Usage Data in Eclipse
  • Troubleshooting Memory Leaks With Heap Profilers

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