Nick

Can you post the line in your gradle file you're using to import the rainbow hat? On Sun, Dec 17, 2017, 3:10 AM soorajshankar wrote: > Error:Execution failed for task...

Looks like Rainbow Hat uses [24.2.0 of Android Support Annotations](https://github.com/androidthings/contrib-drivers/blob/master/rainbowhat/build.gradle#L32), but only for testing. I don't know why it would conflict with your version.

Yes you're right it isn't defined as **testImplementation**, but I do wonder why this library is using it. It probably should be updated or perhaps removed. But **implementation** shouldn't pass...

Have you enabled the permission to record audio?

Are there any logs related to this which may be available a little before the stacktrace? (You may need to change the filter from **Show only application** to **No filter**)

Do you see any other errors in the logs, like _failed to find I2S audio input device, using default_ or _error configuring peripherals:_? It looks like the flag `USE_VOICEHAT_I2S_DAC` is...

The emulator does not support Android Things. Due to the potentially complex nature of emulating hardware peripherals, it's preferable to test on device.

There's a limitation in the printer driver where it runs through each pixel and only prints out dark pixels and doesn't print light pixels. You may need to do additional...

It's possible that there's a bug in the implementation, as it's been a while since I've played with a printer, but the original code looks the same as the current...

By compressed, do you mean that it'll omit certain rows? The black issue may be due to the internal rendering process from your bitmap to the pixels. Maybe it's due...