Cant import "core"

I am trying out the new Xojo release 2020v2, I have loaded a previous IOS project in and get pages and pages of errors relating to cant import “x” because its member “y” would conflict with “z” that is already defined in this block.
It’s the open source webkit that seems to be throwing hundreds of these errors on compile. Is there any easy way to fix all these errors?

You might try turning off “Simple References” in the iOS Shared Build Settings and then adding back Using clauses in places where they are still needed.

More tips here:
https://documentation.xojo.com/resources/ios_api_2.0_changes.html#Notes

Wow that causes thousands of errors like cant find this type, how do you know what to add to using for all these errors?

vRaise new InvalidArgumentException

there is no simple reference in build settings in the latest version of xojo