105 lines
4.2 KiB
Markdown
105 lines
4.2 KiB
Markdown
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# Troubleshooting
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## Smarty/PHP errors
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Smarty can catch many errors such as missing tag attributes or malformed
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variable names. If this happens, you will see an error similar to the
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following:
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```
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Warning: Smarty: [in index.tpl line 4]: syntax error: unknown tag - '%blah'
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in /path/to/smarty/Smarty.class.php on line 1041
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Fatal error: Smarty: [in index.tpl line 28]: syntax error: missing section name
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in /path/to/smarty/Smarty.class.php on line 1041
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```
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Smarty shows you the template name, the line number and the error. After
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that, the error consists of the actual line number in the Smarty class
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that the error occurred.
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There are certain errors that Smarty cannot catch, such as missing close
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tags. These types of errors usually end up in PHP compile-time parsing
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errors.
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`Parse error: parse error in /path/to/smarty/templates_c/index.tpl.php on line 75`
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When you encounter a PHP parsing error, the error line number will
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correspond to the compiled PHP script, NOT the template itself. Usually
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you can look at the template and spot the syntax error. Here are some
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common things to look for: missing close tags for
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[`{if}{/if}`](../designers/language-builtin-functions/language-function-if.md) or
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[`{section}{/section}`](../designers/language-builtin-functions/language-function-section.md),
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or syntax of logic within an `{if}` tag. If you can\'t find the error, you might have to
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open the compiled PHP file and go to the line number to figure out where
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the corresponding error is in the template.
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```
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Warning: Smarty error: unable to read resource: "index.tpl" in...
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```
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or
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```
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Warning: Smarty error: unable to read resource: "site.conf" in...
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```
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- The [`$template_dir`](../programmers/api-variables/variable-template-dir.md) is incorrect, doesn't
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exist or the file `index.tpl` is not in the `templates/` directory
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- A [`{config_load}`](../designers/language-builtin-functions/language-function-config-load.md) function is
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within a template (or [`configLoad()`](../programmers/api-functions/api-config-load.md) has been
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called) and either [`$config_dir`](../programmers/api-variables/variable-config-dir.md) is
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incorrect, does not exist or `site.conf` is not in the directory.
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```
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Fatal error: Smarty error: the $compile_dir 'templates_c' does not exist,
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or is not a directory...
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```
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- Either the [`$compile_dir`](../programmers/api-variables/variable-compile-dir.md)is incorrectly
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set, the directory does not exist, or `templates_c` is a file and
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not a directory.
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```
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Fatal error: Smarty error: unable to write to $compile_dir '....
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```
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- The [`$compile_dir`](../programmers/api-variables/variable-compile-dir.md) is not writable by the
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web server. See the bottom of the [installing
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smarty](../getting-started.md#installation) page for more about permissions.
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```
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Fatal error: Smarty error: the $cache_dir 'cache' does not exist,
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or is not a directory. in /..
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```
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- This means that [`$caching`](../programmers/api-variables/variable-caching.md) is enabled and
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either; the [`$cache_dir`](../programmers/api-variables/variable-cache-dir.md) is incorrectly set,
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the directory does not exist, or `cache/` is a file and not a
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directory.
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```
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Fatal error: Smarty error: unable to write to $cache_dir '/...
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```
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- This means that [`$caching`](../programmers/api-variables/variable-caching.md) is enabled and the
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[`$cache_dir`](../programmers/api-variables/variable-cache-dir.md) is not writable by the web
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server. See the bottom of the [installing
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smarty](../getting-started.md#installation) page for permissions.
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```
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Warning: filemtime(): stat failed for /path/to/smarty/cache/3ab50a623e65185c49bf17c63c90cc56070ea85c.one.tpl.php
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in /path/to/smarty/libs/sysplugins/smarty_resource.php
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```
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- This means that your application registered a custom error handler
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(using [set_error_handler()](https://www.php.net/set_error_handler))
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which is not respecting the given `$errno` as it should. If, for
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whatever reason, this is the desired behaviour of your custom error
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handler, please call
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[`muteExpectedErrors()`](../programmers/api-functions/api-mute-expected-errors.md) after you've
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registered your custom error handler.
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See also [debugging](../designers/chapter-debugging-console.md).
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