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CANoe Crash due to Exceeded Path Length

Last updated: 2020-03-04
Issue:

CANoe crashes at the first start after changes in the file system.

Solution:

CANoe might crash because the directory structure is very deep and the path exceeds 260 characters. By changing the directory structure and thus the path length, the issue can be resolved.

Please consider the action before the crash occurred. Changes in file structure, for example adding a file or copying the configuration to another place and starting from there, are indicators for path length issues. In this case you might check the path lengths of files used in the configuration.

If there is no such indication please go to the Online Assistant for CANoe or CANalyzer Assertions

Background:

Please refer to the File Naming Conventions of Microsoft, especially the Maximum Path Length Limitation:

 “In the Windows API (with some exceptions discussed in the following paragraphs), the maximum length for a path is MAX_PATH, which is defined as 260 characters. A local path is structured in the following order: drive letter, colon, backslash, name components separated by backslashes, and a terminating null character. For example, the maximum path on drive D is "D:\some 256-character path string<NUL>" where "<NUL>" represents the invisible terminating null character for the current system codepage. (The characters < > are used here for visual clarity and cannot be part of a valid path string.)”

 
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2020-03-04
Views: 118