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Guide GUI's are all blank gray boxes, something is wrong....

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Hello everyone!
Well I have an issue with Guide GUI's. I will run a GUI based program and it will display a gray box the correct size, but it has nothing in it, all the buttons or displays or plots do not show up at all. It remains an empty gray box...
I have tried a few different GUI's and even made one with all of them having the same result. I run MATLAB on a linux, I know I have had the GUI's working in the past, but now they don't. I'm not sure what changed, it could of been in an automatic update, I don't know.
This is a post found that looked similar, but it did not seem to really answer how to fix the issue:
It happens to all GUI's so I did not think I needed to add code. I did try looking it up too, I found others with the same issue (it looks like it could be some type of Java issue, but I'm not sure), but did not really find a way to fix the issue.
Any help will be very appreciated!!!
Please if you know how to fix it, let me know!
Ilham Hardy
Ilham Hardy on 5 Jun 2014
Based on the link you gave, that, Java version 7, is the problem.
If possible try to downgrade the java, and check whether the probel persist.

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Accepted Answer

Chris E.
Chris E. on 6 Jun 2014
It was the Java! I reinstalled Java 6 and it worked fine!

More Answers (1)

Jack on 20 Jun 2014
Edited: Jack on 20 Jun 2014
Hi. This is my prlbem:
When I connect java to new java (version 6) and run it I have this error :
Fatal Error on startup: Cannot locate or initialize class com/mathworks/jmi/OpaqueJavaInterface. java.lang.UnsupportedClassVersionError: com/mathworks/jmi/OpaqueJavaInterface : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClassCond( at java.lang.ClassLoader.defineClass( at at at$000( at$ at Method) at at java.lang.ClassLoader.loadClass( at sun.misc.Launcher$AppClassLoader.loadClass( at java.lang.ClassLoader.loadClass(
I'm downgrading java 1.7 of Matlab R2014a to 1.6


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