I'm using MikTex and am trying to import the TikZ package to draw some graphics in LaTeX. When the pdf builds however it doesn't recognise the package TikZ and fails. Every other package I am using works fine. Any ideas what I might be doing wrong? This could just be a dumb question like I haven't downloaded … which you need to run it but in the online manual there doesn't seem to be any system requirements etc.
[Tex/LaTex] \usepackage{tikz} not working
texniccentertikz-pgf
Related Solutions
You need to load the intersections library:
\usetikzlibrary{intersections}
See 13.3.2 Intersections of Arbitrary Paths in the TikZ 2.10 manual, which explains also name path=... and name intersections=....
For an error message like this:
! Package pgfkeys Error: I do not know the key '/tikz/drop shadow' and I am going to ignore it. Perhaps you misspelled it.
See the pgfkeys package documentation for explanation.
the solution is to include the appropriate TikZ library, in this case
\usetikzlibrary{shadows}
In more detail, here's how you can find the solution:
first open open the TikZ manual, by invoking
texdoc tikzortexdoc pgfkeysortexdoc pgfmanual. You can also find it online through a CTAN mirror.Search for the key the error complained about, in this case
/tikz/drop shadow. (Admittedly this can take a while in a file nearly 1200 pages long.) (You can also try the Index at the end of the manual.)- Go up till you find the section it occurs in. In this case, occurs in section 66.3.1:
If you go up to 66.3 (right there) and then to 66, you'll find the library you need to include:
As the instructions say, you can use \usetikzlibrary{shadows} so that you no longer get the error message.
Best Answer
Install the
pgfpackage as TikZ belongs topgf, it's just the frontend. If you use MiKTeX, use the MiKTeX package manager aka mpm, with TeX Live use the TeX Live Manager aka tlmgr. You may find it in the start menu.