Install app twice

Hello, i hope you can help me, i’m trying to install an app twice in the same device, but i get an error INSTALL_FAILED_CONFLICTING_PROVIDER or ERROR - 505 from the PlayStore , I’ve changed the id on the config.xml from to but seems to be not enough. any suggestion ?

Look at the generated code. Is there the old package name present maybe? Remove the platform ad re-add it, this could fix the problem by regenerating all code.