when I connect my android device, logcat shows a lot of error messages and do not stop spaming it. is this normal? anyone know what I can do against it?
log screenshots:


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The images you’ve posted show error messages that are completely unrelated to your app, unless you’re working with the BOOT_COMPLETE broadcast and Alarms.
You can simple filter out messages that aren’t from your application using a tag in your messages or by filtering with the process ID.