Results 1 to 2 of 2

Thread: Failed QWT plugin

  1. #1
    Join Date
    Oct 2013
    Qt products

    Default Failed QWT plugin

    Hi All,

    I have been trying for many, many hours across multiple operating systems to get QT up and running with QWT plotting library. It has been an absolute nightmare, and I'm very close to forgetting the entire thing. I would be extremely grateful for some help from a more experienced user.

    Working in Ubuntu linux, I've installed QT and QWT according to the instructions here: (no errors along the way)

    However, when in design view within QT Creator, I don't get any QWT widgets to show up. A check to Plugin Information shows that it is listed as a failed plugin with the following message:
    "Cannot load library ( cannot open shared object file: No such file or directory)"
    BUT, when I follow the filepath in terminal, the file does actually exist! What do I need to do in order to get QWT working here? Thanks in advance for your help!

  2. #2
    Join Date
    Mar 2009
    Brisbane, Australia
    Thanked 1,610 Times in 1,537 Posts
    Qt products
    Qt4 Qt5
    Unix/X11 Windows
    Wiki edits

    Default Re: Failed QWT plugin

    Ensure that libqwt is in the system library path or in LD_LIBRARY_PATH of the environment that Qt Creator is runing in. The Designer plugin will need to load libqwt at load time.

Similar Threads

  1. Failed to load platform plugin "windows"
    By Eos Pengwern in forum Installation and Deployment
    Replies: 1
    Last Post: 19th September 2013, 17:57
  2. Replies: 7
    Last Post: 11th April 2013, 11:55
  3. Replies: 1
    Last Post: 7th January 2013, 00:29
  4. Replies: 1
    Last Post: 8th October 2010, 12:38
  5. Plugin and shared class between plugin and application
    By wishper in forum Qt Programming
    Replies: 7
    Last Post: 23rd August 2010, 18:00

Tags for this Thread


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Digia, Qt and their respective logos are trademarks of Digia Plc in Finland and/or other countries worldwide.