The following actions uses node12 which is deprecated and will be forced to run on node16: actions/checkout@v2, actions/setup-dotnet@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

Converting null literal or possible null value to non-nullable type.

Possible null reference argument for parameter 'path1' in 'string Path.Combine(string path1, string path2)'.

Because this call is not awaited, execution of the current method continues before the call is completed. Consider applying the 'await' operator to the result of the call.

Possible null reference argument for parameter 'sub' in 'string BBDownUtil.RSubString(string sub)'.

Possible null reference argument for parameter 'sub' in 'string BBDownUtil.RSubString(string sub)'.

The type name 'pb' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pbc' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pbr' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'scg' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pb' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pbc' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pbr' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'scg' only contains lower-cased ascii characters. Such names may become reserved for the language.

The type name 'pb' only contains lower-cased ascii characters. Such names may become reserved for the language.