Processing won’t start at all

Processing
1

In the .err file it says

“Exception in thread “AWT-EventQueue-0” java.lang.NoClassDefFoundError: Could not initialize class sun.reflect.misc.MethodUtil”

Any help?

1 Like
2

that’s bad,
but as this is not your first post i assume that is not a installation question?

is this a question about your code? not running ?
can you post it here?

anyhow,
first try to run any ready example to check your system is not damaged.

if it is system related

  • what hardware / OS
  • what processing version you used

just give more info…

3

Not a code problem, it just wont start. AT ALL.
This is an error from processing itself, not from any of my code.
Windows 7
Processing 3.5.3

4

so you might need a new installation?

-1- backup your sketch
-2- delete ?Documents/processing-3.5.3/ dir
-3- delete ?Documents/Processing/ dir
-4- delete system dir
c:\Users\ < USER > \AppData\Roaming\Processing\

you might do a test and start with -4- only
and restart processing

make a new download of
processing 3.5.3
? you have win 7 32? 64 ? bit ?
and choose processing accordingly

and unzip ( like to /Documents/ ) and start from there

5

I did that 3 times. It never worked.
Well, I guess I havent done a 100% fresh install.
If this does work, thank you.

EDIT:
It doesn’t work.

6

as you had processing working on ?this? system before,
the question is what did you change that processing can not run anymore?

  • update win ?
  • install hardware or graphic driver

change anything?

7

Nope, didn’t change anything.

8

it is not up to me to say you need a new windows,

but possibly there is only a problem with your user,
so a easy test would be to create a new windows user
and install processing in that environment.

and this time you give a detailed report about every step / link / filename / path / mouseclick…
how you start something and
what you see then
where you found what error file and post the full content,