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Merge two lists of common errors (#428)
* Merge two lists of common errors * Reword text in accordions to enable search for common errors
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@ -8,18 +8,60 @@ lang: en-US
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This page is for when you encounter a problem with a source or the app.
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This page is for when you encounter a problem with a source or the app.
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::: c-danger Common error messages
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### What are some common errors?
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This is just a list of some errors. Go through [Diagnosis](#diagnosis) even if your problem isn't on the list.
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- HTTP Error 4xx
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::: c-warning
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- HTTP Error 5xx
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If error-specific instructions didn't help or your error isn't on the list, go through [Diagnosis](#diagnosis).
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- Unexpected URL
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- Page List is empty
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- Unable to resolve host
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- Failed to bypass Cloudflare
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- java.security.cert.CertPathValidatorException
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- Attempt to invoke virtual method 'java.lang.String org.jsoup.nodes.Node.attr(java.lang.String)' on a null object reference
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:::
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:::
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:::: el-collapse
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::: el-collapse-item title="Java.lang Exception: Challenge not found"
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Often **Java.lang Exception: Challenge not found** will be resolved by force-quitting and reopening **Tachiyomi**.
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:::
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::: el-collapse-item title="Loader not implemented"
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**Loader not implemented** means that the respective extension for the manga is not installed. To fix, install the extension for the manga. If it still doesn't work, uninstall then reinstall the extension again.
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:::
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::: el-collapse-item title="Value Manga is licensed at data of type java.lang.String cannot be converted to JSONObject"
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**Value Manga is licensed...** means that the manga has been licensed and can no longer be read on that source. Try a different source to read the manga.
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:::
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::: el-collapse-item title="HTTP error 403"
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HTTP error 403 probably means that the source you selected has **Cloudflare** protection on and is enforcing [CAPTCHA](#solving-a-captcha). Please complete the [CAPTCHA](#solving-a-captcha) to fix it.
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:::
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::: el-collapse-item title="HTTP error 429 (Too Many Requests)"
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**HTTP error 429** or **Too Many Requests** means that the source banned your IP address (in most cases it's temporary). We suggest to [migrate](./source-migration.md) part of your manga to another source to reduce number of requests to the source.
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::: el-collapse-item title="HTTP error 5xx"
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**HTTP error 5xx** like **500, 502** and others are server errors and the source you are trying to access has problems on their side. Open the source in <Navigation item="webview"/> and check if the site is down.
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::: el-collapse-item title="Unable to resolve host / Connection failed"
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Errors like **Unable to resolve host** or **Connection failed** mean that something prevents your connection with the site. Possible reasons: your internet connection is bad, the app doesn't have access to the internet, your ISP have blocked the site, the site is down. Try using different internet connection (switch to Wi-Fi, mobile data or a VPN). Try to enable <Navigation item="more"/> → <Navigation item="settings"/> → <Navigation item="settings_advanced"/> → **DNS over HTTPS**.
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:::
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::: el-collapse-item title="java.security.cert.CertPathValidatorException / Chain validation failed"
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**java.security.cert.CertPathValidatorException** or **Chain validation failed** means there is a problem with validating source's sertificate.
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- Check if the site's certificate have expired. Use an online service for checking SSL certificates. If the certificate have expired, then wait while the site owner will renew it.
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- Ensure that you have the right date and time set on your phone.
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- Try <Navigation item="more"/> → <Navigation item="settings"/> → <Navigation item="settings_advanced"/> → **Clear cache** and **Clear cookies**.
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- Try using different internet connection (switch to Wi-Fi, mobile data or a VPN).
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- Try to restart the device.
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::: el-collapse-item title="App not installed"
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You may encounter **App not installed** if you're installing an official build over an existing **F-Droid** build due to differing signatures.
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Backup your data, uninstall the app, then restore the data in the fresh install.
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::: el-collapse-item title="Attempt to invoke virtual method 'com.hippo.unifile..."
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**Attempt to invoke virtual method 'com.hippo.unifile...** error can be caused by a variety of reasons, all to do with storage.
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- Most commonly it is caused by full storage, check to see if your device or SD Card is full.
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- Check if **Tachiyomi** has access to the SD card. You can enable it in the android settings for app permissions.
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- 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.
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- The drive you're writing to is corrupted. Check using a file manager to see if it is accessible.
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:::
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::: el-collapse-item title="Cannot Access SD Card"
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**Cannot Access SD Card** error is typically caused by having a file or folder name that is too long. 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.
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::::
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## Diagnosis
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## Diagnosis
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* Verify your extensions are up to date. (<Navigation item="browse"/> → Extensions, make sure no extensions have an update button)
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* Verify your extensions are up to date. (<Navigation item="browse"/> → Extensions, make sure no extensions have an update button)
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* Check if **Tachiyomi** has an update (<Navigation item="more"/> → <Navigation item="about"/> then click **Check for updates**)
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* Check if **Tachiyomi** has an update (<Navigation item="more"/> → <Navigation item="about"/> then click **Check for updates**)
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@ -64,57 +106,6 @@ If the site is reachable and fully functional then there may be an issue with th
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If the site is not reachable or having issues then all you can do is wait for the site to become functional again.
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If the site is not reachable or having issues then all you can do is wait for the site to become functional again.
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### What are some common errors?
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:::: el-collapse
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::: el-collapse-item title="Java.lang Exception: Challenge not found"
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Often this will be resolved by force-quitting and reopening **Tachiyomi**.
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:::
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::: el-collapse-item title="Loader not implemented"
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It means that the respective extension for the manga is not installed. To fix, install the extension for the manga. If it still doesn't work, uninstall then reinstall the extension again.
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:::
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::: el-collapse-item title="Value Manga is licensed at data of type java.lang.String cannot be converted to JSONObject"
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This means that the manga has been licensed and can no longer be read on that source. Try a different source to read the manga.
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:::
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::: el-collapse-item title="HTTP error 403"
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The source you selected may have **Cloudflare** protection on and is enforcing [CAPTCHA](#solving-a-captcha). Please complete the [CAPTCHA](#solving-a-captcha) to fix it.
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:::
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::: el-collapse-item title="HTTP error 429 (Too Many Requests)"
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The source banned your IP address (in most cases it's temporary). We suggest to [migrate](./source-migration.md) part of your manga to another source.
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:::
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::: el-collapse-item title="HTTP error 5xx"
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Most probably the source you are trying to access has problems on their side. Open the source in <Navigation item="webview"/> and check if the site is down.
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:::
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::: el-collapse-item title="Unable to resolve host / Connection failed"
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That means that something prevents your connection with the site. Possible reasons: your internet connection is bad, the app doesn't have access to internet, your ISP have blocked the site, the site is down. Try using different internet connection (switch to Wi-Fi, mobile data or a VPN). Try to enable <Navigation item="more"/> → <Navigation item="settings"/> → <Navigation item="settings_advanced"/> → **DNS over HTTPS**.
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:::
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::: el-collapse-item title="java.security.cert.CertPathValidatorException / Chain validation failed"
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That means there is a problem with validating source's sertificate.
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- Check if the site's certificate have expired. Use an online service for checking SSL certificates. If the certificate have expired, then wait while the site owner will renew it.
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- Ensure that you have right date and time set on your phone.
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- Try <Navigation item="more"/> → <Navigation item="settings"/> → <Navigation item="settings_advanced"/> → **Clear cache** and **Clear cookies**.
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- Try using different internet connection (switch to Wi-Fi, mobile data or a VPN).
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- Try to restart the device.
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:::
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::: el-collapse-item title="App not installed"
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You may encounter this if you're installing an official build over an existing **F-Droid** build due to differing signatures.
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Backup your data, uninstall the app, then restore the data in the fresh install.
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:::
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::: el-collapse-item title="Attempt to invoke virtual method 'com.hippo.unifile..."
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This error can be caused by a variety of reasons, all to do with storage.
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- Most commonly it is caused by full storage, check to see if your device or SD Card is full.
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- Check if **Tachiyomi** has access to the SD card. You can enable it in the android settings for app permissions.
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- 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.
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- The drive you're writing to is corrupted. Check using a file manager to see if it is accessible.
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:::
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::: el-collapse-item title="Cannot Access SD Card"
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This error is typically caused by having a file or folder name that is too long. 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.
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:::
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::::
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## Solving a CAPTCHA
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## Solving a CAPTCHA
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**Please note that WebView is not the same as using your browser.**
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**Please note that WebView is not the same as using your browser.**
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