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I compiled a very simple node.js express application with tsc (TypeScript) on the command line and wanted to debug it with VSCode, but when I pressed F5 I got the error: Cannot launch program ‘…/app/ts’ because corresponding JavaScript cannot be found.

I expected the paths in the launch.json to be wrong, but that was not the case.

The problem was that I did not generate *.js.map files.

After I changed the tsconfig.json file, to generate *.js.map files, I could debug the application.

tsconfig.json

{

“compileOnSave”: false,

“compilerOptions”: {

“target”: “ES2015”,

“module”: “commonjs”,

“sourceMap”: true,

“strict”: true

}

}