error TS2602: JSX element implicitly has type 'any' because the global type 'JSX.Element' does not exist
I resolved this issue by installing the react type definition.
Try to run yarn add --dev @types/react
There are two versions of React available in Typings. I've seen this issue with typings install react and using noImplicitAny.
I resolved this by installing the global version: typings install dt~react --global
Put this configuration in the tsconfig.json file so that the ts server does not recognize that type of errors
{ "compilerOptions": { "outDir": "build/dist", "module": "commonjs", "target": "es5", "lib": ["es6", "dom"], "sourceMap": true, "allowJs": true, "jsx": "react", "moduleResolution": "node", "rootDir": "src", "noImplicitReturns": true, "noImplicitThis": true, "noImplicitAny": true, "strictNullChecks": true }, "exclude": [ "node_modules", "build", "scripts", "acceptance-tests", "webpack", "jest", "src/setupTests.ts" ], "types": [ "typePatches" ]}