Hello, I'm a beginner. Please help. Where can be a bug? Thank you

Package names have to start with lowercase letters (every segment).

start with small where are the capital letters at the beginning of the package name?Everything must be small so?

this might be some encoding issue. based on your name, you might be in the not-just-english part of the world (such as myself). there might be some character set problems in the file

Every piece of package name must start with lowercase. Your last segment is

View

, so it’s violated.

And how can I fix it now for it to be good?

view

. You can have upper-case letters, but not at the start of a ‘word’.

com.bns.viewItems

would be ok as it starts with a lowercase after the period.

ok,How do I overwrite it so I do not interfere with the app?

Looks like you have a number of packages that don't follow the naming convention. Either you update them all (including directory name) OR you decide to ignore the issue as they're only warnings. That's your (team's) decision to make.

Package name corrected but old writes error: No matching client found for package name 'com.example.jurajsolarml.simpleapp.dev'