What you want to ask is how to solve the problem of inconsistency between whatsapp update package and installed applications? You need to download and install the update package again. The reason why the whatsapp update package is inconsistent with the installation signature is that the update package has been modified, or the downloaded update package has not been officially released, and the installation update needs to be downloaded again to unpack it. Whatsapp is a free multi-platform messaging application, which can make video and voice calls and send short messages.