ID:150027 Can't replace with empty string

CAUSE: You directed the Quartus Prime software to search the current file and replace all instances of specific text with an empty string. However, some of the text in the file cannot be replaced with an empty string, for example, instance names and block or symbol names.

ACTION: Click OK to close the message dialog box. If necessary, close the Replace dialog box. If you want, direct the Quartus Prime software to perform another search and text replacement.