java.langU​nsatisfied​LinkError problem

Hi all,

I'm using MATLAB 2015a in Linux Ubuntu 19.04.

My Matlab interface is a mess with the buttons of the interfaces.

Sometimes the editor buttons do not work, sometimes the buttons and clicking in the main matlab window do not work.

I get the following error when clicking in the Community button, for example:

Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /usr/local/MATLAB/R2015a/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: /lib/x86_64-linux-gnu/libcairo.so.2: undefined symbol: FT_Get_Var_Design_Coordinates
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary1(Unknown Source)
	at java.lang.ClassLoader.loadLibrary0(Unknown Source)
	at java.lang.ClassLoader.loadLibrary(Unknown Source)
	at java.lang.Runtime.load0(Unknown Source)
	at java.lang.System.load(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)

Does anybody know how to solve such problem?

Answer 1

[Rouhollah Abdollahi]

Hi , Finally I could solve this problem using this link:

https://podcloud.fr/podcast/tuxicoman/episode/undefined-symbol-ft-get-var-design-coordinates

The solution is very simple, rename libfreetype.so.6 in the matlabroot/bin/glnxa64

sudo mv matlabroot/bin/glnxa64/libfreetype.so.6  matlabroot/bin/glnxa64/BK_libfreetype.so.6

I have tested it with 3 version of Matlab and works for them

Best

Rouhi

[drummer]

Hi Rouhollah.

I actually upgraded my MATLAB version to 2019. Problems have stopped.

Thanks for the support.

Cheers

[Abinash Dash]

Thanks. This solution worked for me on R2017a(Ubuntu Mate 20.04). Whenever I opened help browser, it showed help in a weird way and the libcairo error appeared on command window. I renamed the file as instructed in this answer . Now no error appears and help browser also shows up in nicely. Thanks again.

[David Winthrop]

I tried this and MATLAB simply crashed when I typed doc at the command line. R2018 in Ubuntu 20.

The error message I was trying to fix is shown below. This is what happens when I type doc at the command line.

Exception in thread "XPCOMMessageLoop" java.lang.UnsatisfiedLinkError: /home/bigd/Documents/MATLAB/sys/jxbrowser/glnxa64/xulrunner/xulrunner-linux-64/libxul.so: /lib/x86_64-linux-gnu/libcairo.so.2: undefined symbol: FT_Get_Var_Design_Coordinates
	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
	at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1941)
	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1824)
	at java.lang.Runtime.load0(Runtime.java:809)
	at java.lang.System.load(System.java:1086)
	at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.c(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.impl.linux.LinuxMozillaToolkit.a(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.MozillaToolkit.initialize(Unknown Source)
	at com.teamdev.jxbrowser.gecko.xpcom.AppShellXPCOMThread$b.run(Unknown Source)

[Hyunjun Hyung]

Thanks, It works for me on R2017a(Ubuntu20.04).

[Laurentiu NAVAL]

thanks, it worked on R2022a (archlinux)