Android Development Debug installation failed since the device possibly has stale dexed jars

Source: Internet
Author: User

After writing the code today, a dialog box appears that failed to install the program:

Installation failed since the device possibly have stale dexed jars that don ' t match the current version (dexopt error). In order to proceed, you have to uninstall the existing application.

Warning:uninstalling'll remove the application data!

Does want to uninstall the existing application?

has been running is so, dead and alive no way, finally got a night, finally found the answer,androidstudio-> Build, clean Projects and then the following tasks are completed, re-run on it.

Android Development Debug installation failed since the device possibly has stale dexed jars

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