message.ts:
warnOutdatedPrettierVersion:
https://github.com/prettier/prettier-vscode/blob/9476a014323f41da7e89a05f133671a97a53ac07/src/NotificationService.ts#L35
The extension keep giving outdated prettier version notification, but I have the latest version 1.19.1 installed.
./node_modules/.bin/prettier --version
1.19.1
The settings:

The message is wrong. I鈥檒l look into it. The issue though is you set the prettier path to the bin path, not the module. Change it to ./node_modules/prettier and it should work as expected.
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Most helpful comment
The message is wrong. I鈥檒l look into it. The issue though is you set the prettier path to the bin path, not the module. Change it to ./node_modules/prettier and it should work as expected.