EmitterError: Declaration generation failed

[prashanth2692]

Digging into the code found out that the error originates because of below code
const emitOutput = program.emit(sourceFile, writeFile); if (emitOutput.emitSkipped || emitOutput.diagnostics.length > 0)

when changed if statement in the above code as below, ts file generation is successful.
if (emitOutput.emitSkipped && emitOutput.diagnostics.length > 0)

In my case emitOutput.emitSkipped is true in case of a .js file.

Please let me know if this could be an issue with my config. Below is the command I am using
dts-generator --name myProjectname --main /src/index --project . --out myProjectname.d.ts --exclude __tests__/**/*.d.ts --exclude __mocks__/**/*.ts --exclude node_modules/**/*.ts --prefix ''