Invoke no method named get value in class java.lang.boolean how solve this error

OK

You are calling 'GetValue', so if there is a value, it will be loaded. If it's your intention to just delete all chat from the Db Tag 'chat', remove the tag (when you store later, the tag gets re-created).

Snap2

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What if you have more than one Tag and want to delete all data. Well, you could, if the Db was on your own Server, delete the Db file -not from an App, from a control panel that offers Server management via a Browser on your Computer.

From an App, you could delete all of the Tags.

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