I tried the solution of Max. I don’t get the error directly now but after 8 minutes of loading I get the error:
PackageManager: Installing toolchain-gccarmnoneeabi @ >=1.80201.181221
Downloading…
Unpacking…
Warning! Package Mirror: Package version 1.80201.181220 doesn’t satisfy requirements >=1.80201.181221
Error: Could not install ‘toolchain-gccarmnoneeabi’ with version requirements ‘>=1.80201.181221’ for your system ‘darwin_x86_64’.
Please try this solution → Redirecting...
I changed 1.80201.181221 in the JSON file in 1.80201.181220 and now it works. Thanks Max!