I need to use ģ symbol in my presentation. This symbol has 0123 utf-8 code. But when I am typing it in writeLatex it compiles with error:

Package ucs Error: Unknown Unicode character 291 = U+0123, (ucs) possibly declared in uni-1.def.

I was dealing with such problem on my workstation, and I just hard coded this symbol in uni-1.def file as \'{g}. However in writeLatex website I can't do that, and I tried to use command, \DeclareUnicodeCharacter{0123}{\'{g}} , but there was no change, still compiled with this error. For input encoding I use \usepackage[utf8x]{inputenc}. For Now I have only one solution, instead ģ I just type \'{g} which is really inconvenient. Do you have any suggestions?

  • Did you try \newcommand{}{}?
    – user31034
    Commented Mar 27, 2014 at 7:30
  • Hmm; are you using the utf8x option to inputenc? Don't.
    – egreg
    Commented Mar 27, 2014 at 7:53
  • Doesn’t \'{g} produce g with acute accent? So that would be a wrong character if you want g with cedilla. Commented Mar 27, 2014 at 8:02

2 Answers 2


It's not really an acute accent, but an inverted comma. The combelow package provides it.

So define U+0123 to \cb{g} (and U+0122 to \cb{G}).

If you don't use the utf8x option, but resort to utf8, you can exploit the newunicodechar package, for these definitions:




enter image description here

  • The capital letter produced does not a have a cedilla but a comma. But G with cedilla, Ģ, was not the problem here: it can be written as \unichar{"0122} or inserted as such when utf8 is enabled. Commented Mar 27, 2014 at 9:12
  • @JukkaK.Korpela As far as I know, the Latvian tradition wants a comma, rather than a cedilla.
    – egreg
    Commented Mar 27, 2014 at 9:46
  • This solution works!However I have to add deffinitions for Āā Īī Ēē etc. in same fasion to avoid errors.
    – alevins
    Commented Mar 28, 2014 at 12:57

This is quick and literally dirty fix (workaround), using the dirty option:


The result is a bit ugly, but recognizable as g with cedilla.

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