grep : binary file matches

[mister_v]

I use grep to find a string in a text file, but got nothing
and the message is binary file matches

And it should show some matches. If i open the txt-file with kate and search, I find it.

[chris]

Grep thinks that it is binary file for some reason,
and doesn't process it.
Maybe there are some special characters in the txt file.

You can solve it by forcing:
grep --text
grep -a
or grep --binary-files=text