问题描述
我试图通过cron运行casper.js脚本。一切工作正常，当我手动运行脚本，但当我通过cron运行它得到以下错误：
I'm trying to run a casper.js script via cron. Everything works fine when I run the script manually, but when I run it via cron I get the following errors:
Traceback (most recent call last):
File "/usr/local/bin/casperjs", line 46, in <module>
status = subprocess.call(CASPER_COMMAND)
File "/usr/lib/python2.6/subprocess.py", line 480, in call
return Popen(*popenargs, **kwargs).wait()
File "/usr/lib/python2.6/subprocess.py", line 633, in __init__
errread, errwrite)
File "/usr/lib/python2.6/subprocess.py", line 1139, in _execute_child
raise child_exception
OSError: [Errno 2] No such file or directory
我的crontab条目是：
My crontab entry is:
30 9 * * * / usr / local / bin / casperjs lib / fsaupload.js arg1 arg2 arg3
我也试过了
30 9 * * * python / usr / local / bin / casperjs lib / fsaupload.js arg1 arg2 arg3
这给了我相同的结果。有任何想法吗？我想这可能是一个路径问题，但不知道从哪里去！
Which gives me the same result. Any ideas? I'm guessing it might be a path issue, but no idea where to go from here!
推荐答案
您应该使用绝对路径到您的casper脚本，例如：
You should probably use an absolute path to your casper script, something like:
30 9 * * * /usr/local/bin/casperjs /absolute/path/to/lib/fsaupload.js arg1 arg2 arg3
$ b b
我的两分钱。
My two cents.
编辑：
是有点傻。您还可以通过设置 PHANTOMJS_EXECUTABLE 环境变量来设置 phantomjs 可执行文件的自定义路径：
Okay, it was a bit silly. You can also set a custom path to the phantomjs executable by setting the PHANTOMJS_EXECUTABLE environment variable:
$ export PHANTOMJS_EXECUTABLE="/path/to/phantomjs"
然后像往常一样运行脚本：
Then run your script as usual:
/usr/local/bin/casperjs /absolute/path/to/lib/fsaupload.js arg1 arg2 arg3
提示：如果您的crontab作为另一个
Hint: If your crontab runs as another user, check that it has access to the phantomjs path.
希望它有助于（和工作）。
Hope it helps (and works).
再次编辑
等待，您收到的堆栈跟踪说，您使用的是旧版本的CasperJS（例如 subprocess 模块不再使用）。尝试使用更新版本：）
Wait, the stack trace you get says you're using an old version of CasperJS (eg. the subprocess module is no more used). Try with a more recent version :)
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