Lost Keystore Android

I have an app on Google Play and I want to provide a new version with updates, but unfortunately I've lost the keystore (yes, I'm an idiot). I know that I need to use the same key

Solution 1:

If you lost your keystore then there is no way that you can update the app in play store (it will cause a signature error)! The only way is that you can create an app with a new package name upload it to store and remove the old app.