i got 223 expression error when i imported ae project into another ?

As Mylenium said we need more info about the expression error, and as a quick solution try to change your project settings to support legacy expression, it may not help but if it's an old project this may be a reason and another reason is a language so what is the language of your AE? and the Expression Language for your project?

Did this project work without expression problem if you open it so did you get the error only if you imported?

Without any specific info about the project and the expressions used nobody can even begin to guess.

Mylenium