greenfoot javalangIllegalArgumentException Could not open sound file

Based on your stacktrace and description of symptoms, it appears that there might be issues with playing certain audio files (.wav) in Greenfoot.

Here's an attempt to break down what could potentially cause these problems:

1. Unsupported WAV formats:

- Make sure the .wav files you're trying to play are compatible with Greenfoot's current support.

- Some `.wav` files may contain compression or other metadata that isn't recognized by Greenfoot, leading to errors.

2. Corrupted audio data:

- Try opening these .wav files in a basic media player like VLC or Audacity on your computer outside of the Greenfoot environment. If they play fine there but not within the game, it could indicate corruption during file transfer or storage.

3. Loading and playing sound issues:

- Double-check that you're correctly loading and initializing any necessary audio libraries before trying to play sounds.

To troubleshoot further:

1. Try using a simpler `.wav` file that's known to work in Greenfoot as a baseline comparison.

2. If possible, try exporting your problematic .wav files from whatever software they were created/edited with again, selecting the default settings for WAV export (e.g., Uncompressed PCM).

3. Experiment with different audio players and/or media libraries within Greenfoot or even switching to alternative game engines that might have better sound support.

4. If none of these suggestions help resolve your issues, you may want to consider filing a bug report on the relevant issue trackers for both Greenfoot itself (for its own limitations) as well as any third-party audio libraries you're using in hopes someone more knowledgeable about their specific implementation can offer guidance or workarounds.

I hope this helps! Let me know if there's anything else I've missed.

Greenfoot javalangIllegalArgumentException Could not open sound file