[OS X TeX] Error in TikZ code hard to find

[Mark Lim MK]

My experience for TikZ diagram is also break up into diagram by diagram in a single tikzpicture environment
Its easier to decode and find out which code is giving you trouble picture wise.


On Nov 12, 2014, at 10:03 AM, George Gratzer <gratzer at me.com> wrote:

> My experience is different. TikZ catches almost no errors except missing “;”. 
> 
> Type only few lines, typeset.
> 
> I error, comment out new lines, and introduce them a line (or two, if necessary) at a time.
> Should save you hours of grief.
> 
> If your TikZ code is correct, it will be typeset correctly. Same with LaTeX.
> But TikZ is even worse than LaTeX.
> 
> How bad: it cannot typeset the first introductory example in the TikZ manual…
> 
> GG
> 
> 
>> On Nov 11, 2014, at 6:40 PM, Don Green Dragon <fergdc at shaw.ca> wrote:
>> 
>> Hello All,
>> 
>> I hope the following will not be too trivial for the knowledgeable people on this list but possibly it will help someone who regularly creates graphics with the wonderful TikZ package.
>> 
>> Was working on a document with three chapters and was revising certain parts of chapter 1, hence it was the only chapter whose source code was active.
>> 
>> Decided to include another {tikzpicture} environment. It was very simple and short and I was confident that the code would work, so typeset. TeXShop replies with an error of the form
>> 
>> .Chapters/Chapter1.tex: 5805: Undefined control sequence
>> \Generic error …
>> 					#4 \errhelp  \@err@ ...
>> 
>> l. 5805 … y over the closed interval $[0 \,..\, p]
>> 										   $.
>> 
>> I get those kind of messages all the time because I make careless mistakes in typing; e.g., type \em[h{. . .} instead of \emph{. . .}. Usually the error message identifies the offending control sequence, but in this case I could not figure out which string was the offender.
>> 
>> By the way, I use  source code fragments of the form $[a \,..\, b]$ often and they had caused no problems in the past. I focused on what appeared to be the offending  $[0 \,..\, p]$.
>> 
>> After a couple of hours of trying this and that, including a suspicion that TeXShop was acting badly and so  RESTART and SHUT DOWM were tried, and much more, which I will avoid relating. Here follows my error. 
>> 
>> In the code for {tikzpicture} I had written (not including the line number 5682)
>> 
>> 5682 \path (7, 0.5) node[right[ {Picture of blah blah blah};
>> 
>> instead of 
>> 
>> 5682 \path (7, 0.5) node[right] {Picture of blah blah blah};
>> 
>> and it was that incorrect occurrence of `[‘ that triggered the error that was reported about line 5805.
>> 
>> I know! I should have checked the tikzpicture code right away since the attempt to typeset it resulted in `strange’ behaviour. Usually, TikZ catches those sort of errors so you can track them down.
>> 
>> That’s it.
>> 
>> 
>> don green dragon
>> fergdc at shaw.ca
>> 
>> 
>> 
>> 
>> 
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> 
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