Java.lang.Exception: Failed to bypass Cloudflare means that the source you selected has Cloudflare protection on, refer to the Cloudflare guide to fix it. If the solutions provided do not fix the issue, the source has likely raised the Cloudflare protection level high enough that Tachiyomi is not able to access the site.
HTTP error 403
Possible reasons for HTTP error 403:
The source you selected has Cloudflare protection on, refer to the Cloudflare guide to fix it.
The source is down, removed the manga, or banned your IP. Open
public
WebView to check if this is the case.
HTTP error 404
HTTP error 404 probably means that the source is down or removed the manga. Open
public
WebView to check if this is the case. Migrate to a different source for this manga if you'd like.
HTTP error 429 (Too Many Requests)
HTTP error 429 or Too Many Requests means that the source banned your IP address (in most cases, it's temporary) because you could be downloading or reading too fast. We suggest reporting(opens new window) the issue so that a rate limit can be added to prevent IP bans in the future.
HTTP error 5xx
HTTP error 5xx like 500, 502 and others are server-side errors, and the source you are trying to access has problems on their side. Open the source in
public
WebView and check if the site is down.
HTTP error 1006
HTTP error 1006 means that the source has banned your IP address (in most cases, it's temporary).
HTTP error 1020
HTTP error 1020 means that you have violated a firewall rule the site owner has put up. This usually means that the site owner has raised the Cloudflare protection level or that the site owner is blocking IPs outside their country.
Unable to resolve host / Connection failed / Failed to connect to / timeout / connection reset
Errors like Unable to resolve host, Connection failed, Failed to connect to, timeout, connection reset mean that something is preventing you from connecting to the source.
Possible reasons include:
Your internet connection is not good enough to connect.
The app does not have access to the internet.
Your ISP has blocked the site.
The site is down.
Try the following solutions to fix this issue:
Enable
more_horiz
More →
settings
Settings →
code
Advanced → DNS over HTTPS.
Use a different internet connection (switch to Wi-Fi, a different Wi-Fi network, mobile data or a VPN).
java.security.cert.CertPathValidatorException or Chain validation failed means there is a problem with validating source's sertificate.
Check if the site's certificate has expired. Use an online service for checking SSL certificates. If the certificate has expired, wait while the site owner to renew it.
Ensure that you have the right date and time set on your phone.
Try
more_horiz
More →
settings
Settings →
code
Advanced → Clear cache and Clear cookies.
Try using a different internet connection (switch to Wi-Fi, a different Wi-Fi network, mobile data or a VPN).
Attempt to invoke virtual method 'com.hippo.unifile...
The Attempt to invoke virtual method' com.hippo.unifile... error can be caused by various reasons, but they all have to do with storage.
Most commonly, it is caused by full storage. Check to see if your device or SD Card is full.
Check if Tachiyomi has access to the SD card. You can enable it in Android settings for app permissions.
If you're downloading and this error pops up, that means the app might not be able to access the folder you're trying to download to. This may be because the folder is corrupted or does not exist. Use a file manager to check that the folder(s) exist and every folder in the sequence is available and accessible.
The drive you're writing to is corrupted. Check using a file manager to see if it is accessible.
Cannot Access SD Card
The Cannot Access SD Card error can sometimes be fixed by changing the location of your downloads to somewhere else and back to the SD card, then restarting the app.
Having a file or folder name that is too long can also cause this issue. Android's file manager does not support filenames longer than 255 characters. If you know the file or folder name that is the culprit, you can connect your SD card to your computer and shorten it. Otherwise, delete the Tachiyomi downloads folder off of the SD Card.
Storage issues with Android 11+
See this section of the FAQ to learn how Scoped Storage affects Tachiyomi in Android 11+ and how to fix it.
Slow loading
Disclaimer
Tachiyomi is not hosting any content, we are not affiliated with or responsible for any source that is; slow, down, missing chapters, or has subpar image quality.
If any sources are slow, it is likely due to the site being slow, your internet being slow, or a ratelimit applied to the source to reduce load or IP bans.
Reading is laggy
This is usually due to the images in the chapters being too long or large for the reader to handle. If you turn have 32-bit color on, try turning it off under
more_horiz
More →
settings
Settings →
chrome_reader_mode
Reader. This helps sometimes to free up some RAM being used. To eliminate this issue, find a different source that cuts the chapter into more pieces or downscales the images.
If error-specific instructions didn't help or your error isn't on the list, go through Diagnosis.
If none of these solutions help, try asking in our Discord Server(opens new window). Check #status-updates first to see if your issue is known. State your app version and the source, manga, and chapter with the problem if it is not listed.
You may be getting a Cloudflare protection, may have been IP-banned, or encountered some other counter-measure that website owners deploy against programs like Tachiyomi. If that is the case, there is probably nothing that Tachiyomi can do to solve it. Some of them (like Cloudflare) have to be manually solved, and some are temporary (IP bans).
Workarounds that can the lower chance of an issue happening again:
Don't use downloads with the source.
Have less manga in your library from the source.
The above are imprecise and fuzzy rules because each site has its non-public limits and triggers.
Some sources may have more advanced Cloudflare protection, that results in infinite loading in WebView when trying to bypass Cloudflare using the solution above. If you are facing this issue, try the following steps:
GUIDE
Go to
explore
Browse in the bottom navbar.
Press the source you would like to access.
Press the
public
WebView icon. Refer to the previous picture.
Press the
more_vert
Overflow icon and then press Open in Browser.
Once done, press the X at the top left and return to the source.
To update WebView, you need to find what WebView implementation is used on your device. In general, default implementation depends on the Android version as follows:
Try installing Split APK Installer(opens new window) from the Google Play Store, then use it to try and install the affected APK. Split APK Installer will tell you why the APK is uninstallable, or it will install the APK for you. Some common errors are listed below.
INSTALL_FAILED_UPDATE_INCOMPATIBLE: Package eu.kanade.tachiyomi signatures do not match the previously installed version; ignoring!
If Split APK Installer outputs the above error when attempting to install the APK, you are likely installing a official build over an existing F-Droid build. The F-Droid build has a different signature than the official build, so you must backup your data, uninstall the app, then restore the data in a fresh install.
DISPLAY_NAME column is null
If Split APK Installer outputs "DISPLAY_NAME column is null", the APK you have downloaded is corrupted. Some users experience this error multiple times after redownloading the APK, so keep redownloading the APK until it installs correctly.
INSTALL_FAILED_NO_MATCHING_ABIS
If Split APK Installer outputs "INSTALL_FAILED_NO_MATCHING_ABIS", the APK you have downloaded is the wrong one for your CPU architecture. Download the correct one or download the universal APK if you are not aware which CPU architecture your device uses.
