Watch the video:

0:00 - Explanation
0:36 - "Beatmap is missing some files" or "Angry" error
1:20 - Your options
2:12 - cln! (TcNo osu! Cleaner)
3:12 - Download cln! (TcNo osu! Cleaner)
3:35 - Launching cnl! (TcNo osu! Cleaner)
4:49 - Deleting my osu! backgrounds
6:05 - Replacing missing osu! backgrounds (no more errors)

What’s The Issue?

If you’ve ever used a piece of software like hentax’s osu! cleaner or my TcNo osu Cleaner, you may have ended up deleting background images. This can lead to an error code in the game just before your song starts, but it doesn’t actually affect gameplay.

What causes the error?

First, let’s take a look at exactly what this error is. If you open up the songs folder, you’ll see that usually songs have backgrounds, but if you search for a song that you recently removed the background for, you’ll see that it doesn’t actually have any background. It uses the default background from your skin or the one that’s currently set to the default one in osu!. If you open up the song itself, you’ll see that the speed map is missing some files and may not be displayed correctly.

How to fix the error - 2 Options

To fix this, either:

1. Replace the background with the original background by re-downloading and re-adding the song.
2. Replacing the background image locally with a preset image.

You can replace the background image with a preset image using TcNo osu! Cleaner. Not only can you save gigabytes of space out of your huge osu! library, move it to another disk really easily, but it also includes the feature of replacing missing backgrounds.

The only downside is that it will replace the background with a really tiny one by one pixel black image, saving you space but it does mean that instead of getting the randomly generated backgrounds as such or whatever background you have it will instead just be completely black.

If you want to not have the error and have something in the background, you’ll have to replace the background either by getting the background files from someone else or by re-downloading the actual song files itself and re-adding them to your computer by simply opening them up in osu!.

Downloading TcNo osu! Cleaner

If you’re comfortable having a completely black background just to get rid of that error completely, then my software is for you. TcNo osu! Cleaner is open source, meaning that you can go through the code and make sure that nothing malicious is happening yourself and the community can do that too.

To download the software, all you have to do is click the Download Latest button on the github page, and follow the installation instructions on the bottom of the page.

Installing TcNo osu! Cleaner

To install TcNo osu! Cleaner, follow these steps:

1. After Downloading osu! Cleaner, open up the zip file.
2. Inside the zip file, there is a folder TcNo-osu-cleaner-2.2
3. Extract the folder onto your desktop or anywhere onto your computer.
4. Open the folder and click on TcNo-osu-Cleaner.exe

Opening TcNo-osu-Cleaner.exe will open up the program itself, there is no installation. If the project doesn’t open up, refer to the section that says web installer, which will take you to the net framework 4.5.2 runtime installer Microsoft.NET Framework 4.5.2 Runtime

How to replace images with black images.

1. Open TcNo osu! Cleaner.
2. Select Backgrounds
3. Click Replace missing images with black images

When you play a song in OSU! you will only see a black background, and you will not recieve the “Beatmap is missing some files” or “Angry” error.

How To Delete All background images

To remove backgrounds using TcNo osu! Cleaner, follow these steps:

1. Open TcNo osu! Cleaner
2. Select Backgrounds, Click Find
3. Click Select All
4. Click Delete

Only delete backgrounds / videos in osu! if you want to save space on your HDD / SSD.

Conclusion

With TcNo osu! cleaner, you can fix “Beatmap is missing some files” or “Angry” error, as well as save gigabytes of storage on your computer.