gauravk95 / gauravk95/audio-visualizer-android

java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.start()' on a null object reference

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#30 opened on May 22, 2022 4 comments 0 reactions 0 assignees View on GitHub

Dominant language: Java
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Description

PLEASE HELP! When I run the program, I´m seeing files called Music. The thing is I don´t know what kind of files they are. When I click on one, I get the next error:

![vista_biblioteca](https://user-images.githubusercontent.com/74356462/169709318-8f28bbb7-d2e3-46bb-8d95-ca8ad0c772f3.jpg)

![runtimeException_white](https://user-images.githubusercontent.com/74356462/169709325-2e6973ee-0f2b-41d1-9918-4d821898a032.jpg)

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java.lang.NullPointerException: Attempt to invoke virtual method 'void android.media.MediaPlayer.start()' on a null object reference

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