Situation
----------
In my company, some developer needs to work in a windows environment. Therefore I need a basic custom linter based on the `ArcanistTextLinter`.
So I started asking in Q220 how this works in general.
I copied an exisiting Linter, customized it an saved it in the arcanist `extensions` directory.
After editing my `.arclint` file `arc linters` command works as expected and finds the new linter.
The Error
----------
If I try to lint some files i get the following error:
```lang=bash
$ arc lint WindowsPowerShell/Modules/VCRTools/Write-Message2.ps1 --trace
libphutil loaded from '/home/admwkiv924/phab/libphutil/src'.
arcanist loaded from '/home/admwkiv924/phab/arcanist/src'.
Config: Reading user configuration file "/home/admwkiv924/.arcrc"...
Config: Did not find system configuration at "/etc/arcconfig".
Working Copy: Reading .arcconfig from "/home/admwkiv924/workspace/phabricator/vcr-powercli/.arcconfig".
Working Copy: Path "/home/admwkiv924/workspace/phabricator/vcr-powercli" is part of `git` working copy "/home/admwkiv924/workspace/phabricator/vcr-powercli".
Working Copy: Project root is at "/home/admwkiv924/workspace/phabricator/vcr-powercli".
Config: Did not find local configuration at "/home/admwkiv924/workspace/phabricator/vcr-powercli/.git/arc/config".
Examining paths for linter 'powerhsell'.
Found 1 matching paths for linter 'powerhsell'.
[2015-11-25 13:06:16] ERROR 2: md5_file(/home/admwkiv924/phab/arcanist/src//home/admwkiv924/phab/arcanist/src/extensions/ArcanistPowerShellLinter.php): failed to open stream: No such file or directory at [/home/admwkiv924/phab/arcanist/src/lint/engine/ArcanistLintEngine.php:204]
arcanist(head=master, ref.master=9e78d15fc0c7, custom=1), phutil(head=master, ref.master=5538909d6468)
#0 md5_file(string) called at [<arcanist>/src/lint/engine/ArcanistLintEngine.php:204]
#1 ArcanistLintEngine::run() called at [<arcanist>/src/workflow/ArcanistLintWorkflow.php:334]
#2 ArcanistLintWorkflow::run() called at [<arcanist>/scripts/arcanist.php:382]
>>> [0] <lint> Basic PowerShell Linter <paths = 1>
<<< [0] <lint> 343 us
>>> [1] <lint> Basic PowerShell Linter <paths = 1>
<<< [1] <lint> 96 us
>>> [2] <exec> $ git rev-parse --git-dir
<<< [2] <exec> 3,799 us
OKAY No lint warnings.
```
At first I thought I did something wrong with the lint file itself, or messed up with my environment. So I moved to a new system and tried it again but with the same result. I also tried it in a windows and linux environment with the same results.
According to the line beginning with `[2015-11-25 13:06:16] ERROR 2:` it seems like the directory is wrong. Maybe because of some configuration errors or parsing in `ArcanistLinterEngine`:
```lang=php, name=ArcanistLinterEngine: Lines202 ff
if ($symbol) {
$version .= ':'.md5_file(
phutil_get_library_root($symbol['library']).'/'.$symbol['where']);
}
```
So I hope this are enough details to work with :D