installation of the symfony framework

  mysql, php, symfony, xampp

I just started with the symfony framework I installed the environment without problem but when I run the symfony server for the first time with: symfony server: start I get an error like this

[Web server] [07-Apr -2021 06:27:42 Europe / Berlin] 2021-04-07T06: 27: 42 + 02: 00 [critical] Error not caught: syntax error, "|" unexpected, expected variable (T_VARIABLE)
and this |ERROR | SERVER GET (500) / ip=""

here are the errors obtained need help please
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I do not know what to do

Thank you!

Source: Symfony Questions