1
Hello, follow the following steps:
1 - Window > Preferences > Java > Compiler: Czech if you have java 8 in Compiler compliance level.
2 - Window > Preferences > Java > Installed Jres: Czech if you have the library set for java 8:
3 - After adjusting everything, gives a clean in the project: Project > Clean... > Clean all Projects
I hope I’ve helped ^^
What’s the mistake the eclipse says it has?
– Victor Stafusa
What is the eclipse version?
– Victor Stafusa
Not from the error, it only says to delete the default expression it does not recognize. The eclipse version is Kepler Service Release 1
– Thiago Marques