# Known Issues [edit]

This page contains a list of known issues for Aptana Studio:

## Preview

Currently, Aptana Studio does not support "Default Preview" of php files on Linux. This may crash Aptana Studio. (See Trac Issue# 6607 for details.

## FTPS

Not all settings available in the Aptana Studio configuration screens are supported by all file transfer servers. A server might return an error if it does not support a particular setting. You might need to try different settings to get the connection to work; however, Aptana Studio defaults these values to what is typically supported and recommended for the given protocol.

## Debugging (all debugging)

Note: Using an old version of the debugger and attempting to upgrade may cause errors. Uninstall your old debugger before installing the new version. See Uninstalling the debugger for instructions.

### Breakpoints

- Deleting JavaScript code does not currently delete associated breakpoints. (See Issue #6595 in Trac.)
- Breakpoint line numbers are currently not sensitive to code deletions/insertions. (See Issue #6594 in Trac.)
- Wrapping JavaScript code in a function currently causes breakpoints to disappear. (See Issue #6578 in Trac.)

## IE Debugging

### Unsupported features

- Debugging files that are not part of a project. (Promote your folder to a "project" to debug these files.)
- Debugging straight JavaScript files
- Debugging local file:// pages
- Breakpoints in eval() code (dojo etc.)
- Detail formatters
- Anonymous functions name resolving
- Exception trace/breakpoint handling
- Assert API (like in Firefox extension)
- XMLHttpRequest: response data is not displayed
- Scripts tree

## Firebug

For users of the YSlow plug-in, you may experience conflicts with the current version of Firebug.

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Category: AptanaHelp