Can't compile anymore on latest MacOS/Xcode

[trurebel]

I tried several variations of the theme, somewhere somehow pod always breaks, I think the most principled way to go about it is

`flutter upgrade
Upgrading Flutter from /Users/flutter...
From https://github.com/flutter/flutter
fa4d31b31..4566b3403 master -> origin/master
Updating 0e605cc4d..4566b3403
73 files changed, 859 insertions(+), 439 deletions(-)
Building flutter tool...

• Installing target share iOS 8.0
  - Generating module map file at Pods/Target Support Files/share/share.modulemap
  - Generating umbrella header at Pods/Target Support Files/share/share-umbrella.h
  - Generating Info.plist file at Pods/Target Support Files/share/share-Info.plist
  - Generating dummy source at Pods/Target Support Files/share/share-dummy.m
  • Installing Aggregate Targets
    • Installing target Pods-Runner iOS 8.0
      • Generating Info.plist file at Pods/Target Support Files/Pods-Runner/Pods-Runner-Info.plist
      • Generating module map file at Pods/Target Support Files/Pods-Runner/Pods-Runner.modulemap
      • Generating umbrella header at Pods/Target Support Files/Pods-Runner/Pods-Runner-umbrella.h
      • Generating dummy source at Pods/Target Support Files/Pods-Runner/Pods-Runner-dummy.m
  • Generating deterministic UUIDs
  • Stabilizing target UUIDs
  • Running post install hooks
    [!] An error occurred while processing the post-install hook of the Podfile.

`

Raising the iOS target to 13 was not a fix, as well as some Podfile editing I tried, but this is my first day with flutter, perhaps it can be retouched in a couple of places and run?