Manually Configured File Location Maps

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If you are manually configuring remote debugging without using Wing Pro's Remote Hosts feature, and the full path to your source code is not the same on both hosts, and the automated file identification system described in the previous section won't work for your case, then you will need to create a mapping that tells Wing where it can find your source files on each host. This is done with the Debugger > Network > Location Map preference, which lists corresponding local and remote directory locations for each remote host's IP address.

Each host IP address in the location map is paired with one or more (remote_prefix, local_prefix) pairs. The remote_prefix is the full path on the remote hosts's file system using the file naming conventions for the remote host. The local_prefix is the full path of a local directory, using / forward slash as the separator regardless of which OS Wing is running on (except when specifying UNC style paths on Windows, in which case \ backslash is used).

The best way to understand this is to look at the Manually Configured Location Map Examples.

SSH Tunnels

When using an SSH tunnel, the IP address entered into the Location Map preference is the IP address of the host the IDE is running on, since the IDE thinks the connection is coming from the local host. This is often but on Windows it may instead be the IP address for the host. This depends on the peer ip that is reported on the IDE side for connections opened through the pipe.

Details and Limitations

If multiple matches are found for a given remote file, Wing uses the most specific match, with the longest remote directory specification. Matches that point to existing local files are preferred over non-existing ones, even if the match is more general.

When running Wing on Windows, UNC formatted file names such as \\machine\path\to\file may be used. In cases where setting up a persistent drive mapping is a problem, use a cmd.exe script with a net use command to map the drive on demand.

Note that making symbolic links on the client or server will not work as an alternative to using this mapping. This is a side-effect of functionality in the debugger that ensures that debugging works right when symbolic links are present. As a result, source file names are always resolved to their actual full path location.


When in doubt, an easy way to determine the correct file path to use is to place assert 0 into a file and refer to the traceback shown in the Exceptions tool in Wing when the file is debugged via wingdbstub. This can be used to set up the location map correctly, assuming you know the local location of the file.