info No lockfile found.
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warning jest > jest-cli > jest-config > jest-environment-jsdom > jsdom > left-pad@1.3.0: use String.prototype.padStart()
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error sane@4.1.0: The engine "node" is incompatible with this module. Expected version "6.* || 8.* || >= 10.*". Got "9.11.2"
error Found incompatible module.
info Visit https://yarnpkg.com/en/docs/cli/add for documentation about this command.
yarn 对 node 的版本要求是 6.* 或者 8.* 或者 10.*, 发现现在是9.11.2, 出现不兼容的模块。