{
  symbol: "calendar-check-o ",
  url: "webcal://p55-calendars.icloud.com/published/2/TDWYwJjbv2BpM3HLxxxxxxxxxxxxxxxxxvZM-3TNpXNgZXsi192SI7M6pxxxxxxxxxxxxxxxxxxxxxxxXZCkcApre7Kg\"
}

you can see there that the next line is green which indicates that the string isn’t closed there probably. This happen because of the \ right in front of the quote character.

If the backslash doesn’t belong to your string remove it, if you need the backslash you have to escape the backslash by adding a second. like this:

{
  symbol: "calendar-check-o ",
  url: "webcal://p55-calendars.icloud.com/published/2/TDWYwJjbv2BpM3HLxxxxxxxxxxxxxxxxxvZM-3TNpXNgZXsi192SI7M6pxxxxxxxxxxxxxxxxxxxxxxxXZCkcApre7Kg\\"
}

here you can see that the closing curly brace is no longer highlighted in green because the string is closed properly.

it worked fine, but then after I put my stuff in
Please correct syntax errors.

If the default config works then this should be telling you that you are not making config entries correctly. Start again from the default config, making sure it runs, then add one module at a time, making sure it still works after each entry, then backing up your config each time you successfully add a module. I don’t know what else to offer you. I fixed your first config and tested it.

I got the "WARNING? Could not validate config file. Please correct syntax errors. Starting with default configuration.”

Then load it said “Please create config file.”

cd Magic Mirror
npm start

and then I get the “WARNING? Could not validate config file. Please correct syntax errors. Starting with default configuration.”

and then when it loads the “Please create config file.”

And then when I loads up it says, “Please create config file.”

IF you’re not sure and you’re having config.js problems run it through here …

http://esprima.org/demo/validate.html

It will tell you where your errors are… I mean it’s nice of people to fix things but if you’re working on this at 2AM and nobody is here… you’re not getting your mirror to work until the next day ;)

I get the unable to validate config error, and gives me a need to create config screen when booted. How do I fix?

The “need to create config” error message usually means that you have not copied the example configuration file to the production file. You’ll want to copy the config.js.sample file to it’s final destination of config.js. You can use this command (assuming you haven’t changed the paths and you’re using a standard Raspberry Pi):
cp /home/pi/MagicMirror/config/config.js.example /home/pi/MagicMirror/config/config.js

Thank you, but that didn’t work

Uhh, I used that config and it fired up just fine

language: "en",
    timeFormat: "12",
    units: "imperial",

    modules: [
            {
                    module: "alert",
            },
            {
                    module: "updatenotification",
                    position: "top_bar"
            },
            {
                    module: "clock",
                    position: "top_left"
            },
            {
                    module: "calendar",
                    header: "US Holidays",
                    position: "top_left",
                    config: {
                            calendars: [
                                    {
                                            symbol: "calendar-check-o ",
                                            url: "webcal://p55-calendars.icloud.com/published/2/TDWYwJjbv2BpM3HLxxxxxxxxxxxxxxxxxvZM-3TNpXNgZXsi192SI7M6pxxxxxxxxxxxxxxxxxxxxxxxXZCkcApre7Kg\"
                                    }
                            ]
                    }
            },
            {
                    module: "compliments",
                    position: "lower_third"
            },
            {
                    module: "currentweather",
                    position: "top_right",
                    config: {
                            location: "",
                            locationID: "4460243",  //ID from http://www.openweathermap.org/help/city_list.txt
                            appid: "1b3ccd18090bb8048b4bb5830e444aa1"
                    }
            },
            {
                    module: "weatherforecast",
                    position: "top_right",
                    header: "Weather Forecast",
                    config: {
                            location: "",
                            locationID: "4460243",  //ID from http://www.openweathermap.org/help/city_list.txt
                            appid: "1b3ccd18090bb8048b4bb5830e444aa1"
                    }
            },
            {
                    module: "newsfeed",
                    position: "bottom_bar",
                    config: {
                            feeds: [
                                    {
                                            title: "New York Times",
                                            url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
                                    }
                            ],
                            showSourceTitle: true,
                            showPublishDate: true
                    }
            },
    ]

How do I fix?

Here! I did it for you. You had some crazy quote characters and a missing quote at the end of your calendar url. Just put your API back in for weather.

var config = {
port: 8080,
ipWhitelist: ["::ffff:192.168.1/24", "127.0.0.1", "::ffff:127.0.0.1", "::1"], // Set [] to allow all IP addresses.

    language: "en",
    timeFormat: "12",
    units: "imperial",

    modules: [
            {
                    module: "alert",
            },
            {
                    module: "updatenotification",
                    position: "top_bar"
            },
            {
                    module: "clock",
                    position: "top_left"
            },
            {
                    module: "calendar",
                    header: "US Holidays",
                    position: "top_left",
                    config: {
                            calendars: [
                                    {
                                            symbol: "calendar-check-o ",
                                            url: "webcal://p55-calendars.icloud.com/published/2/TDWYwJjbv2BpM3HLonfCqBBO$"
                                    }
                            ]
                    }
            },
            {
                    module: "compliments",
                    position: "lower_third"
            },
            {
                    module: "currentweather",
                    position: "top_right",
                    config: {
                            location: "",
                            locationID: "4460243",  //ID from http://www.openweathermap.org/help/city_list.txt
                            appid: "YOUR API KEY"
                    }
            },
            {
                    module: "weatherforecast",
                    position: "top_right",
                    header: "Weather Forecast",
                    config: {
                            location: "",
                            locationID: "4460243",  //ID from http://www.openweathermap.org/help/city_list.txt
                            appid: "YOUR API KEY"
                    }
            },
            {
                    module: "newsfeed",
                    position: "bottom_bar",
                    config: {
                            feeds: [
                                    {
                                            title: "New York Times",
                                            url: "http://www.nytimes.com/services/xml/rss/nyt/HomePage.xml"
                                    }
                            ],
                            showSourceTitle: true,
                            showPublishDate: true
                    }
            },
    ]
};

/*************** DO NOT EDIT THE LINE BELOW ***************/
if (typeof module !== "undefined") {module.exports = config;}