This error is due to node_ Modules are missing ‘@dcloudio/uni-cli-i18n’
The following is the error message
Solution:
yarn add -D @dcloudio/uni-cli-i18n @dcloudio/uni-i18n
If yarn cannot be installed, use NPM installation:
npm add -D @dcloudio/uni-cli-i18n @dcloudio/uni-i18n