Process completed with exit code 1.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.DeleteRangeAsync(IEnumerable<T>, CancellationToken)'. 'RepositoryBase<T>.DeleteRangeAsync(IEnumerable<T>, CancellationToken)' cannot implement 'IRepositoryBase<T>.DeleteRangeAsync(IEnumerable<T>, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.DeleteAsync(T, CancellationToken)'. 'RepositoryBase<T>.DeleteAsync(T, CancellationToken)' cannot implement 'IRepositoryBase<T>.DeleteAsync(T, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.UpdateRangeAsync(IEnumerable<T>, CancellationToken)'. 'RepositoryBase<T>.UpdateRangeAsync(IEnumerable<T>, CancellationToken)' cannot implement 'IRepositoryBase<T>.UpdateRangeAsync(IEnumerable<T>, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.UpdateAsync(T, CancellationToken)'. 'RepositoryBase<T>.UpdateAsync(T, CancellationToken)' cannot implement 'IRepositoryBase<T>.UpdateAsync(T, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.DeleteRangeAsync(IEnumerable<T>, CancellationToken)'. 'RepositoryBase<T>.DeleteRangeAsync(IEnumerable<T>, CancellationToken)' cannot implement 'IRepositoryBase<T>.DeleteRangeAsync(IEnumerable<T>, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.DeleteAsync(T, CancellationToken)'. 'RepositoryBase<T>.DeleteAsync(T, CancellationToken)' cannot implement 'IRepositoryBase<T>.DeleteAsync(T, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.UpdateRangeAsync(IEnumerable<T>, CancellationToken)'. 'RepositoryBase<T>.UpdateRangeAsync(IEnumerable<T>, CancellationToken)' cannot implement 'IRepositoryBase<T>.UpdateRangeAsync(IEnumerable<T>, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'EfRepository<T>' does not implement interface member 'IRepositoryBase<T>.UpdateAsync(T, CancellationToken)'. 'RepositoryBase<T>.UpdateAsync(T, CancellationToken)' cannot implement 'IRepositoryBase<T>.UpdateAsync(T, CancellationToken)' because it does not have the matching return type of 'Task<int>'.

'Exception.Exception(SerializationInfo, StreamingContext)' is obsolete: 'This API supports obsolete formatter-based serialization. It should not be called or extended by application code.' (https://aka.ms/dotnet-warnings/SYSLIB0051)