Known Issues macOS

From SPEDAS Wiki
Revision as of 08:26, 10 February 2022 by Nikos (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search

There are a few known issues with IDL widgets and macOS/OSX, running the latest XQuartz (2.7.11), including:

Segmentation fault while running code that involves widgets (SPEDAS GUI, EVA, etc.)

Warning: Fatal Error:

_XmGetDefaultDisplay cannot be used prior to VendorS.Initialize, returns NULL

Segmentation fault: 11

or you may see the error:

Error: attempt to add non-widget child "dsm" to parent "idl" which supports only widgets

or IDL may close abruptly and without warning when running code that involves widgets.


These issues can be fixed at the command line with the following:

1. change to the X11 library directory:

 cd /opt/X11/lib

2. backup the libXt library file found in this directory:

 sudo cp libXt.6.dylib libXt.6.dylib.bak

3. change to the “flat_namespace” directory:

 cd flat_namespace/

4. copy the copy of libXt from this directory up one directory:

 sudo cp libXt.6.dylib ../.

See also:

No annotations/legend text showing in GUI

IDL config issue

This issue is due to corrupt IDL configuration files; to fix, delete the .idl folder in your IDL working directory

IDL freezes after compiling loadct2 with IDL 8.5.1 on macOS 10.14 + Anaconda

A conflict was found between IDL and Anaconda ( on the latest macOS. If a load routine call seems to freeze after compiling loadct2 and you're running both Anaconda and macOS 10.14, a simple fix is to remove and reinstall Anaconda.

Cannot install Java 6

IDL requires Java 6. To install it on newer Macs, you may have to follow the procedure described below:

IDL Workbench crashes on macOS >= 10.12.4

The IDL Workbench crashes when clicking "Clear console", or hitting the delete button, and/or copying/pasting large blocks of text in macOS 10.12.4 and later. This is a known issue with the IDL Workbench on macOS 10.12.4 and later, with no current work-arounds. This bug is related to a Java Eclipse issue (the foundation of the IDLDE):

Note: this bug is fixed in IDL 8.8

'Reveal End of Document' IDL Workbench error in IDL 8.8

The IDL Workbench gives an error: "'Reveal End of Document' has encountered a problem" when copy+pasting a large amount of content into the console. To fix this issue, go to:

IDL > Preferences > Run/Debug > Console

and set the option "Fixed width console" and click "Apply and Close"

Error: attempt to add non-widget child "dsm" to parent "idl"

If you get this error, run these two commands:

sudo mv /opt/X11/lib/libXt.6.dylib{,.bak}

sudo cp /opt/X11/lib{/flat_namespace,}/libXt.6.dylib

Using the MacOS executable

After unzipping the executable in any directory, open the command line (terminal), change directory to spedas/spd_gui and run this command:

sudo chmod +x spedas

Then, to open the SPEDAS GUI, run: