Created branch "dev" from "[file]" version "\main\0".
Type manager "text_file_delta" failed create_version operation.
It looks like files that have over 8000 characters on a single row are unable to be added to version control using normal methods.
Thankfully, I was able to find a solution here:
cleartool ci -nc jquery-1.2.6.min.js
Adding the file to clearcase as a “compressed file” means it doesn’t try to do a file delta!