No Downloads and Errors in code window

[Davierooker]

Running Windows 10, can get the app loaded and select area but no download.
Exception happened during processing of request from ('127.0.0.1', 11709)
Traceback (most recent call last):
File "C:\Users\cwilson.KORBEN\AppData\Local\Programs\Python\Python36\lib\socketserver.py", line 639, in process_request_thread
self.finish_request(request, client_address)
File "C:\Users\cwilson.KORBEN\AppData\Local\Programs\Python\Python36\lib\socketserver.py", line 361, in finish_request
self.RequestHandlerClass(request, client_address, self)
File "C:\Users\cwilson.KORBEN\AppData\Local\Programs\Python\Python36\lib\socketserver.py", line 696, in init
self.handle()
File "C:\Users\cwilson.KORBEN\AppData\Local\Programs\Python\Python36\lib\http\server.py", line 418, in handle
self.handle_one_request()
File "C:\Users\cwilson.KORBEN\AppData\Local\Programs\Python\Python36\lib\http\server.py", line 406, in handle_one_request
method()
File "server.py", line 153, in do_POST
self.writerByType(outputType).addMetadata(lock, os.path.join("output", outputDirectory), filePath, outputFile, "Map Tiles Downloader via AliFlux", "png", boundsArray, centerArray, minZoom, maxZoom, "mercator", 256 * outputScale)
AttributeError: 'NoneType' object has no attribute 'addMetadata'

[apaleja]

I am also getting this same error. did you find any solution ?

[Dawson-Jiang]

you can print outputType value for check reason

[RussellTaylor83]

I have this problem under Ubuntu and not Windows. In server.py, line 133 you'll see

outputDirectory = str(postvars['outputDirectory'][0])

If you print out the value with the following you get different values under Windows and Ubuntu

print("postvars['outputDirectory'][0]: " + str(postvars['outputDirectory'][0]))

Under ubuntu this gives b'{timestamp}' and under windows it gives the correct {timestamp}

I'm not a Python guy but it seems str conversions are handled differently under each OS. On a quick Google search it's something to do with being a byte array and not understanding the character encoding when using str(). Anyway in Ubuntu I swapped out that block of code for this

elif parts.path == '/start-download':
	outputType = str(postvars['outputType'][0], 'utf-8')
	outputScale = int(postvars['outputScale'][0])
	outputDirectory = str(postvars['outputDirectory'][0], 'utf-8')
	outputFile = str(postvars['outputFile'][0], 'utf-8')
	minZoom = int(postvars['minZoom'][0])
	maxZoom = int(postvars['maxZoom'][0])
	timestamp = int(postvars['timestamp'][0])
	bounds = str(postvars['bounds'][0], 'utf-8')
	boundsArray = map(float, bounds.split(","))
	center = str(postvars['center'][0], 'utf-8')
	centerArray = map(float, center.split(","))

Note all str functions having the second argument passed in. Anyway there is probably a correct way to fix this, but this got it running for me for now.

If I get time to figure it out properly I'll post back.

[AliFlux]

I'm currently porting the code to Electron since there are too many python issues including version confusions and performance hits. The v2 will be significantly faster and easier to run