MATLAB: Error when trying to change the colour of a line in a figure

graphicsguilinuxubuntu 18.04

Hello – I'm using Matlab 2017a with Ubuntu 18.04. I open Matlab using the opengl option. I'm getting the following error when I try to change the colour of a line using the GUI:
Error using matlab.ui.internal.dialog.WebColorChooser/show (line 72)
Java exception occurred:
com.mathworks.html.BrowserCreationException: com.mathworks.html.BrowserCreationException:
com.teamdev.jxbrowser.chromium.internal.ipc.IPCException: IPC process exited. Exit code: 127
  at
        com.mathworks.mlwidgets.html.LightweightBrowserBuilder.buildBrowser(LightweightBrowserBuilder.java:86)
          at
        com.mathworks.mlwidgets.html.LightweightBrowserBuilder.buildDefaultBrowser(LightweightBrowserBuilder.java:52)
          at
        com.mathworks.mlwidgets.html.LightweightBrowserFactory.createLightweightBrowser(LightweightBrowserFactory.java:36)
        Caused by: com.mathworks.html.BrowserCreationException:
        com.teamdev.jxbrowser.chromium.internal.ipc.IPCException: IPC process exited. Exit code: 127
  at
        com.mathworks.html.jxbrowser.chromium.LightweightChromiumBrowser.<init>(LightweightChromiumBrowser.java:32)
          at
        com.mathworks.mlwidgets.html.LightweightBrowserBuilder.buildBrowser(LightweightBrowserBuilder.java:78)
          ... 2 more
Caused by: com.teamdev.jxbrowser.chromium.internal.ipc.IPCException: IPC process exited. Exit code: 127
  at com.teamdev.jxbrowser.chromium.internal.ipc.d.run(Unknown Source)
  at java.lang.Thread.run(Unknown Source)
Is there a solution to this? I'm also having a graphics bug, I think the two could be related https://www.mathworks.com/matlabcentral/answers/342959-matlab-r2016b-graphics-bug-linux
Thanks,
Shannon

Best Answer

Error using matlab.ui.internal.dialog.WebColorChooser/show (line 72) indicates you're using uisetcolor, and that's causing the problem - not the actual attempt to change plot line color.
See my own question regarding issues (and workarounds) with the new uisetcolor WebColorChooser.
Since you're running R2017a, try this:
setpref('Mathworks_uisetcolor','Version',1); % RESTART MATLAB
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