Trouble installing topojson on ubuntu

Question

I've been trying to install topojson by following Mike Bostock's Let's Make a Map tutorial http://bost.ocks.org/mike/map/ and I believe I have managed to get the most recent version of Node.js and npm. $which ogr2ogr works as well. I'm quite new to programming and Ubuntu and would sincerely appreciate some thorough help as to why npm install topojson -g yields the following errors. When I try the same command with sudo it yields errors like: npm ERR! registry error parsing json and gyp ERR! stack Error: "pre" versions of node cannot be installed, use the --nodedir flag instead Thanks! ``` npm ERR! Error: EACCES, open '/home/natecraft/.npm/7edf76d6-topojson.lock' npm ERR! { [Error: EACCES, open '/home/natecraft/.npm/7edf76d6-topojson.lock'] npm ERR! errno: 3, npm ERR! code: 'EACCES', npm ERR! path: '/home/natecraft/.npm/7edf76d6-topojson.lock' } npm ERR! npm ERR! Please try running this command again as root/Administrator. npm ERR! System Linux 3.5.0-23-generic npm ERR! command "/home/…

Accepted Answer

First, please check your version of node.js -- use the stable version, not the devel version. Second, invoke the npm command as superuser.

```
$ sudo npm install -g topojson
```

So far, when I switch my node.js into stable version, TopoJSON installation is running well. Thank you for your attention.

Trouble installing topojson on ubuntu

Solution

Problem