Cannot copy multifile assembly component 'component_filename' to file 'destination_filename'. <reason.>
The specified component was not copied to the bin directory.
Some assemblies consist of multiple files. This diagnostic is displayed whenever a file that is part of a multifile assembly cannot be copied to the run directory.
There could be several reasons for failure. For example, running out of disk space or reaching the MAX_PATH limit for path lengths. Also, a process, perhaps Visual Studio, might be holding onto the component that cannot be copied.
To correct this error
- Check for adequate free disk space.
- Try moving the project to a folder whose path length is less than the path length of the current project folder.
- Change the output directory to a folder with a smaller absolute path length. This is applicable for client (non-Web) projects only.
- Restart Visual Studio.