I run launchd and I get an error that says “invalid property list”

launchdpython

When I run launchctl to load/start the plist with the following content:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>Label</key>
    <string>com.web_blocker</string>
    <key>ProgramArguments</key>
    <array>
        <string>/Applications/Python 3.6</string>
        <string>/Users/michaelcunningham/Desktop/website_blocker.py</string>
    </array>
    <key>StartInterval</key>
    <integer>60</integer>
    <key>RunAtLoad</key>
</dict>
</plist>

I get the error "invalid property list". How can I resolve this issue?

Best Answer

Your plist is missing at least the line <true/> (or <false/>) after the line <key>RunAtLoad</key>.

The line <string>/Applications/Python 3.6</string> is useless because this is just a folder but no app/binary. Your Python script may work nevertheless, provided the shebang is set properly.

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