Hi, I was working on updating the IOS integration to master. I managed to compile and run and plan a route on a quite recent version of graphhopper.

In order to minimize the porting changes I rebased my efforts to graphhopper "master" and made good progress until I hit a blocker.

My repos are https://github.com/oflebbe/graphhopper-ios and https://github.com/oflebbe/graphhopper (branch ios_compat_new) . The patch to graphhopper is really minimalistic right now.

graphhopper-ios is rather large, since I had to upgrade dependencies.

The code compiles, links, runs ... and dies at route planning with the message

[java.lang.IllegalArgumentException: You need to specify a profile to perform a routing request, see #1958]
I do not understand what exactly needs to be done, since the tests are rather convoluted at that point and not easily adopted to IOS.

Question 1) I doublechecked with the current Android app and it does not create a ProfileConfig as well.( Does this code really work on Android ?) What would be the correct Java Code to add to Graphhopper initialization or to GHRequest , to fit the default-example.yaml from graphhopper ? (Do I need to add ProfileConfig for CH and LM as well ?) what would be the names ?

This is one obstacle to be solved for submitting a PR to merge it to graphhopper-ios, if you like to merge it :
Question 2) What are the prerequistes for merging , if you care ?