Well, finally I solved it updating cocoa pods to last version, as someone has told here: https://stackoverflow.com/questions/75921899/run-custom-shell-script-cp-embed-pods-frameworks it seems that it is related with a change that was made to Xcode in how it manages relative paths. It generates an issue with cocoa pods that was solved in last version.

Hi The project is exactly the same and Xcode also it's the same. Note that the same project is working sometimes, and sometimes is getting the parse error. Its happening in every project. I'm not sure where is the error, but after a research in google of that kind of exception, I think that the problem is not with the plist xml file, but with the DTD from that apple website pointed in the error. The plist should be fine, remember that sometimes work and sometimes not, with the same project/plist. Why it's failing sometimes?