I created a blank project on Ionic, and by running it with the "ionic server" command, it displays the error below. Nothing has been tweaked in the original design.
Typescript Error Subsequent variable declarations must have the same type. Variable 'process' must be of type' {env: {[key: string]: string; }; } ', but here has type' Process'. node_modules/@types/node/index.d.ts interface NodeRequire extends NodeRequireFunction { solve (id: string): string; cache: any; Ionic Framework: 3.9.2 Ionic App Scripts: 3.2.0 Angular Core: 5.2.11 Angular Compiler CLI: 5.2.11 Node: 10.8.0 OS Platform: Linux 4.15 Navigator Platform: Linux x86_64 User Agent: Mozilla / 5.0 (X11; Ubuntu; Linux x86_64; rv: 61.0) Gecko / 20100101 Firefox / 61.0