Read the statement by Michael Teeuw here.
Weatherunderground - currently - hourly - daily - configurable
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 @pugsly you should not let users add stuff to the vendor folder! Plugin should be self containing :) 
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 So I came home today and noticed that the weather had not refreshed in two days. When I did a pm2 mm restart it did refresh but now im wondering maybe its not refreshing on its own? is there a config setting for how often it does a refresh? 
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 @pugsly That’s strange! There is a setting, but it has a default 10 minute setting. 
 Did you look at the log for clues?updateInterval: 10 * 60 * 1000, // every 10 minutes
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 How can I find the locid? I try a few options but everytime I get an error in my console: http://***:8080/modules/MMM-Wunderground//MMM-Wunderground.js 
 Failed to load resource: the server responded with a status of 404 (Not Found)Also with: pws: ‘pws:IUTRECHT148’, OR pws: ‘NY/New_York’ OR pws: ‘locid:NLXX8014;loctype:1’ 
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 Could you post the relevant config.js section? Could you also check on your pi if /modules/MMM-Wunderground/MMM-Wunderground.js actually exists? 
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 File exists! Config output (actually uncomment): //{ // module: 'MMM-Wunderground', // position: 'top_right', // This can be any of the regions. // // Best results in left or right regions. // config: { // // See 'Configuration options' for more information. // apikey: 'c4fbdf2a7b44d2bd', // private; don't share! // pws: 'NY/New_York', // //lang: 'DE', // fctext: '1', // fcdaycount: "5", // fcdaystart: "0", // hourly: '1', // hourlyinterval: "3", // hourlycount: "2", // alerttime: 10000, // alerttruncatestring: "english:" // truncate the alertstring ath this word// // } //},
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 Any log available? At this point i have no clue why it would stall… 
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 Its been ok since I restarted so I am keeping an eye on it. On another note, why do some configuration items use " ", some use ’ ’ and others don’t have any quotation marks at all? I changed all of mine to ’ ’ 
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 Thanks @pugsly, I checked that again, only with the following config: { module: 'MMM-Wunderground', position: 'top_right', config: { apikey: 'XXXXXX', pws: 'locid:NLXX8014;loctype:1' } },Result is still a black screen. I can see that error on the console (on my computer): 
 Cannot GET /modules/MMM-Wunderground//MMM-Wunderground.jsBut the file is in the folder. Weird! 
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 Perhaps I found something: The Filename is: MMM-WunderGround.js. Tha app is looking for MMM-Wunderground.js. If I change the filename to MMM-Wunderground.js, the mirror starts, but the Module don’t work. I only see this: 
 



