Error with Step 1 with GNI example

[macsmith]

I'm trying to follow the video, FTTx / FTTH network planning in QGIS free software with the provided GNI_FREE_(EN)_1_1_2 plannerFTTx sample.

I get an error message at Step 1 (2mins 35 secs into video) which states:

Algorithm (step 1) create GPON demand and route line from OSM starting...
Prepare algorithm: GNIPLANNERFTTHCHECKWORKCONTEXT_1
Running Check work context (1/16)
Parameters:
Failed

Error executing algorithm Check work context No work context available.

Any idea what the problem might be?

My system details are:
windows 10 64 bit
QuickOSM 1.4.6
Grass 7.2.2
QGIS 2.18.15

Thanks

Ian

[gni_support]

Hello,

You have to create and open a work context in ‘WorkContextTracer’ plugin.

Please, follow the instructions described in "GNI_Short User Guide for FTTx Planner.pdf" chapter 5.

[macsmith]

thanks. Can you provide a link to the document? Google can't find it and it's not in the Documents section of the GNI website.

Ian

[gni_support]

The "GNI_Short User Guide for FTTx Planner.pdf" is distributed with GNI Free package (the zip archive you have downloaded).

[macsmith]

thanks. Yes, I do have that. I thought you meant another document.

Many thanks

Ian

[macsmith]

I now have a work context but still get an error with Step 1. This time it's:

Algorithm [step 1] create GPON demand and route line from OSM starting...
Prepare algorithm: GNIPLANNERFTTHCHECKWORKCONTEXT_1
Running Check work context [1/16]
Parameters:
Converting outputs
OK. Execution took 0.003 ms (0 outputs).
Prepare algorithm: GNIPLANNERFTTHGETLAYEREXTENT_1
Running Get work area extent [2/16]
Parameters: INPUT_LAYER =memory?geometry=Polygon&crs=EPSG:4326, CRS =, PROJECT_CRS =True
Failed

Error executing algorithm Get work area extent 'NoneType' object has no attribute 'xMinimum' See log for more details

Can you help with this one too please?

Thanks

Ian

[gni_support]

This error can occur when an input layer is empty (has no polygons in it).

Please, make sure your input layer for step 1 algorithm is not empty and select polygons which represents your working zone.

[macsmith]

I beleive I have a non-empty layer. See screenshot at:

https://www.flickr.com/photos/iasmith/3 ... ed-friend/

Thanks
Ian

[gni_support]

Please, attach the screenshot to a post.

[macsmith]

the editor says the file is too big (695Kbytes) to attach.

Are you unable to access the url I sent?

Thanks

Ian