Help needed to create json files [SOLVED]

[teacue]

@PaulWalmsley

This looks to be a problem with the path. It can’t find the output directory called ‘json’. This suggests to me that either you need to set the absolute path, and if you are on Windows then you can’t use the backslash in paths directly, you need to use the ‘raw’ string format, so set it as r’c:\path\to\json’ (note the ‘r’ prefix). The other related possibility is that you have to run the script from a specific directory. Lastly, ensure that the ‘json’ directory actually exists.

Thanks a lot Paul for your contribution.
Something is working now and at least the script creates now a json file.
I only had to create indeed the folder “json”!
In the script the code line 52 says:
outDir = ‘json/’;

I had no folder with this name.
I created this “json” folder within the folder where the script and the sfd are and now it works
Now I get a json file in this folder.
I edit my previous post accordingly.

But unfortunately now Dorico does not accept this file and I get the following error from Dorico:
Error opening file: invalid file format
C:/Program Files/Common Files/SMuFL/Fonts/myfont/myfont.json

One problem is solved and the next one is already here

Edit
It works now
I had a look at the created json file and for some reason the mandatory three lines that I mentioned in post 5 of this thread were not written correctly!
After correcting these three lines everything is working as it should.
I will then add this to the step by step explanation.