The library folder doesn't have the ".jar" file, so Processing IDE is unable to recognize sound files

[SammySylvester]

Hello everyone!

I just downloaded the zip folder and extracted it in the libraries folder inside Processing sketchbook, but it seems that Processing IDE doesn't recognize it since it gives me the following error message: "The class does not exist"
Searching online about this issue, it found out that for installing a library inside Processing sketchbook without Contribution Manager, that library needs to have a ".jar" file with the same name as the library inside the library folder. All the other Processing libraries have this ".jar" file, but this library doesn't.

What is the solution for installing this library even without the ".jar" file?

Many thanks in advance!
Sammy

[kevinstadler]

Hello,

the sound.jar is inside the library/ folder (which is itself a subfolder of sound/, which should be found inside your Processing installation's libraries/ folder after extracting the zip). The jar is definitely present in the latest zip release, link here: https://github.com/processing/processing-sound/releases/download/v2.4.0/sound.zip

Is there a particular reason why you can't install the library from the contribution manager? This is the recommended way to install libraries.

Best

[SammySylvester]

Hi!

The reason is an error that Processing IDE throws when I try to run a code that contains the "import processing.sound.*" line.. This didn't happen from the beginning, but since a while I guess.. And it seems that the same error occurs both from contribution manager-installed sound folder as well as the downloaded zip folder.
The error looks like this:

Exception in thread "Thread-15" java.lang.NullPointerException: Cannot read the array length because "list" is null
at processing.app.Library.wrapFiles(Library.java:427)
at processing.app.Library.getApplicationExports(Library.java:437)
at processing.mode.android.AndroidBuild.copyImportedLibs(AndroidBuild.java:839)
at processing.mode.android.AndroidBuild.createAppModule(AndroidBuild.java:481)
at processing.mode.android.AndroidBuild.createProject(AndroidBuild.java:262)
at processing.mode.android.AndroidBuild.build(AndroidBuild.java:223)
at processing.mode.android.AndroidMode.handleRunDevice(AndroidMode.java:294)
at processing.mode.android.AndroidEditor$17.run(AndroidEditor.java:421)

The "Thread-15" keeps changing each time I run the code!
I saw a similar thread on this subject and I followed your solution from there, but it didn't work for me. Is there any other way to make sound work in Processing Android?

Best regards

[kevinstadler]

Ah, I didn't realize you were on Android. Please try the following:

1. delete the current sound/ directory inside libraries/
2. then extract sound-android.zip and try again