unable to access 'https://github.com/celeron533/DicomGrep/': Failed to connect to github.com port 443 after 21073 ms: Couldn't connect to server

Non-nullable field '_searchPath' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable property 'SearchPathHistory' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable field '_fileTypes' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable property 'FileTypesHistory' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable field '_sopClassUid' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable property 'SopClassUidHistory' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable field '_tag' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable property 'DicomTagHistory' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Non-nullable field '_searchText' must contain a non-null value when exiting constructor. Consider declaring the field as nullable.

Non-nullable property 'SearchTextHistory' must contain a non-null value when exiting constructor. Consider declaring the property as nullable.

Failed to download action 'https://api.github.com/repos/actions/upload-artifact/zipball/0b7f8abb1508181956e8e162db84b466c27e18ce'. Error: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond. (codeload.github.com:443)