Can't build

[gnusupport]

yarn
yarn install v1.22.19
warning package.json: "dependencies" has dependency "babel-core" with range "6.26.0" that collides with a dependency in "devDependencies" of the same name with version "^6.26.0"
warning package.json: "dependencies" has dependency "babel-jest" with range "23.0.0-alpha.0" that collides with a dependency in "devDependencies" of the same name with version "22.4.4"
warning package.json: "dependencies" has dependency "jest" with range "20.0.4" that collides with a dependency in "devDependencies" of the same name with version "22.3.0"
warning package-lock.json found. Your project contains lock files generated by tools other than Yarn. It is advised not to mix package managers in order to avoid resolution inconsistencies caused by unsynchronized lock files. To clear this warning, remove package-lock.json.
warning [email protected]: "dependencies" has dependency "babel-core" with range "6.26.0" that collides with a dependency in "devDependencies" of the same name with version "^6.26.0"
warning [email protected]: "dependencies" has dependency "babel-jest" with range "23.0.0-alpha.0" that collides with a dependency in "devDependencies" of the same name with version "22.4.4"
warning [email protected]: "dependencies" has dependency "jest" with range "20.0.4" that collides with a dependency in "devDependencies" of the same name with version "22.3.0"
[1/4] Resolving packages...
warning [email protected]: babel-eslint is now @babel/eslint-parser. This package will no longer receive updates.
warning [email protected]: This loader has been deprecated. Please use eslint-webpack-plugin
[2/4] Fetching packages...
error [email protected]: The engine "node" is incompatible with this module. Expected version ">=4 <=9". Got "19.1.0"
error Found incompatible module.
info Visit https://yarnpkg.com/en/docs/cli/install for documentation about this command.