Cli: Just create a project by expo and then just upgrade and Cannot read property 'toLowerCase'

[openmaya]

Environment

mac, zsh
react-native-cli: 2.0.1
react-native: 0.59.8
npm 6.9.0
expo: 3.0.9

Description

I just create a project by expo using expo-template-blank-typescript
and right then upgrade

Reproducible Demo

expo init MyProject
cd MyProject
react-native upgrade

info No version passed. Fetching latest...
info Fetching diff between v0.59.8 and v0.60.4...
error Cannot read property 'toLowerCase' of undefined
debug TypeError: Cannot read property 'toLowerCase' of undefined
at getPatch (/Users/asdf/MyProject/node_modules/@react-native-community/cli/build/commands/upgrade/upgrade.js:109:121)
at processTicksAndRejections (internal/process/task_queues.js:85:5)
at async Object.upgrade [as func] (/Users/asdf/MyProject/node_modules/@react-native-community/cli/build/commands/upgrade/upgrade.js:238:17)

[Andrea-Arguello]

I am having this same issue, I am trying to work with a component that requires react-native to be 0.60.4 or greater and my project is 0.59, but I cannot upgrade because of this error

[simka]

I take it that you haven't ejected?

Upgrading Expo projects works a bit differently and latest SDK version supports RN 0.59.8, so your best bet is to wait for the next SDK version which is planned for September, I think.

If you have ejected, you're probably missing name field in package.json.

[openmaya]

@maciejsimka Thanks. I will keep the 0.59.8 and wait until Sep.

[grabbou]

I am going to close this issue because the code responsible for this failure is no longer part of the CLI.

toLowerCase() has been removed (and likely other logic has been changed).