diff --git a/Octokit.Reactive/Clients/IObservableRepositoriesClient.cs b/Octokit.Reactive/Clients/IObservableRepositoriesClient.cs
index dd5c78bc85..3d5167d8df 100644
--- a/Octokit.Reactive/Clients/IObservableRepositoriesClient.cs
+++ b/Octokit.Reactive/Clients/IObservableRepositoriesClient.cs
@@ -650,5 +650,21 @@ public interface IObservableRepositoriesClient
         /// <returns>All topics now associated with the repository.</returns>
         IObservable<RepositoryTopics> ReplaceAllTopics(string owner, string name, RepositoryTopics topics);
 
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repos/{owner}/{repo}/codeowners/errors")]
+        IObservable<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(string owner, string name);
+
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="repositoryId">The Id of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repositories/{id}/codeowners/errors")]
+        IObservable<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(long repositoryId);
     }
 }
diff --git a/Octokit.Reactive/Clients/ObservableRepositoriesClient.cs b/Octokit.Reactive/Clients/ObservableRepositoriesClient.cs
index 80f68d1009..4e23db5923 100644
--- a/Octokit.Reactive/Clients/ObservableRepositoriesClient.cs
+++ b/Octokit.Reactive/Clients/ObservableRepositoriesClient.cs
@@ -753,6 +753,32 @@ public IObservable<RepositoryContentLicense> GetLicenseContents(long repositoryI
             return _client.GetLicenseContents(repositoryId).ToObservable();
         }
 
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repos/{owner}/{repo}/codeowners/errors")]
+        public IObservable<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(string owner, string name)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(owner, nameof(owner));
+            Ensure.ArgumentNotNullOrEmptyString(name, nameof(name));
+
+            return _client.GetAllCodeOwnersErrors(owner, name).ToObservable();
+        }
+
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="repositoryId">The Id of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repositories/{id}/codeowners/errors")]
+        public IObservable<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(long repositoryId)
+        {
+            return _client.GetAllCodeOwnersErrors(repositoryId).ToObservable();
+        }
+
         /// <summary>
         /// Updates the specified repository with the values given in <paramref name="update"/>
         /// </summary>
diff --git a/Octokit.Tests.Integration/Clients/RepositoriesClientTests.cs b/Octokit.Tests.Integration/Clients/RepositoriesClientTests.cs
index ce2a9fa34d..6aeb8fc263 100644
--- a/Octokit.Tests.Integration/Clients/RepositoriesClientTests.cs
+++ b/Octokit.Tests.Integration/Clients/RepositoriesClientTests.cs
@@ -2,6 +2,7 @@
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
+using System.Threading;
 using System.Threading.Tasks;
 using Octokit;
 using Octokit.Tests.Integration;
@@ -2102,6 +2103,7 @@ public async Task GetsPagesOfBranchesWithRepositoryId()
     public class TheGetLicenseContentsMethod
     {
         [IntegrationTest]
+        [PotentiallyFlakyTest]
         public async Task ReturnsLicenseContent()
         {
             var github = Helper.GetAuthenticatedClient();
@@ -2114,6 +2116,7 @@ public async Task ReturnsLicenseContent()
         }
 
         [IntegrationTest]
+        [PotentiallyFlakyTest]
         public async Task ReturnsLicenseContentWithRepositoryId()
         {
             var github = Helper.GetAuthenticatedClient();
@@ -2126,6 +2129,39 @@ public async Task ReturnsLicenseContentWithRepositoryId()
         }
     }
 
+    public class TheGetCodeOwnersErrorsMethod : GitHubClientTestBase
+    {
+        [IntegrationTest]
+        public async Task ReturnsCodeOwnersErrors()
+        {
+            using (var repoContext = await _github.CreateUserRepositoryContext())
+            {
+                await _github.Repository.Content.CreateFile(repoContext.RepositoryOwner, repoContext.RepositoryName, ".github/codeowners", new CreateFileRequest("Create codeowners", @"* snyrting6@hotmail.com"));
+                
+                // Sometimes it takes a second to create the file
+                Thread.Sleep(TimeSpan.FromSeconds(2));
+                
+                var license = await _github.Repository.GetAllCodeOwnersErrors(repoContext.RepositoryOwner, repoContext.RepositoryName);
+                Assert.NotEmpty(license.Errors);
+            }
+        }
+
+        [IntegrationTest]
+        public async Task ReturnsCodeOwnersErrorsWithRepositoryId()
+        {
+            using (var repoContext = await _github.CreateUserRepositoryContext())
+            {
+                await _github.Repository.Content.CreateFile(repoContext.RepositoryId, ".github/codeowners", new CreateFileRequest("Create codeowners", @"* snyrting6@hotmail.com"));
+
+                // Sometimes it takes a second to create the file
+                Thread.Sleep(TimeSpan.FromSeconds(2));
+
+                var license = await _github.Repository.GetAllCodeOwnersErrors(repoContext.RepositoryId);
+                Assert.NotEmpty(license.Errors);
+            }
+        }
+    }
+
     public class TheTransferMethod
     {
         [IntegrationTest]
diff --git a/Octokit.Tests/Clients/RepositoriesClientTests.cs b/Octokit.Tests/Clients/RepositoriesClientTests.cs
index 9d95cd1cee..7a7a88879b 100644
--- a/Octokit.Tests/Clients/RepositoriesClientTests.cs
+++ b/Octokit.Tests/Clients/RepositoriesClientTests.cs
@@ -1070,6 +1070,42 @@ public async Task EnsuresNonNullArguments()
             }
         }
 
+        public class TheGetCodeOwnersErrorsMethod
+        {
+            [Fact]
+            public async Task RequestsTheCorrectUrl()
+            {
+                var connection = Substitute.For<IApiConnection>();
+                var client = new RepositoriesClient(connection);
+
+                await client.GetAllCodeOwnersErrors("owner", "name");
+
+                connection.Received()
+                    .Get<RepositoryCodeOwnersErrors>(Arg.Is<Uri>(u => u.ToString() == "repos/owner/name/codeowners/errors"));
+            }
+
+            [Fact]
+            public async Task RequestsTheCorrectUrlWithRepositoryId()
+            {
+                var connection = Substitute.For<IApiConnection>();
+                var client = new RepositoriesClient(connection);
+
+                await client.GetAllCodeOwnersErrors(1);
+
+                connection.Received()
+                    .Get<RepositoryCodeOwnersErrors>(Arg.Is<Uri>(u => u.ToString() == "repositories/1/codeowners/errors"));
+            }
+
+            [Fact]
+            public async Task EnsuresNonNullArguments()
+            {
+                var client = new RepositoriesClient(Substitute.For<IApiConnection>());
+
+                await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllCodeOwnersErrors(null, "repo"));
+                await Assert.ThrowsAsync<ArgumentNullException>(() => client.GetAllCodeOwnersErrors("owner", null));
+            }
+        }
+
         public class TheGetAllTagsMethod
         {
             [Fact]
diff --git a/Octokit/Clients/IRepositoriesClient.cs b/Octokit/Clients/IRepositoriesClient.cs
index 773b76353c..e4dc59a28e 100644
--- a/Octokit/Clients/IRepositoriesClient.cs
+++ b/Octokit/Clients/IRepositoriesClient.cs
@@ -714,5 +714,21 @@ public interface IRepositoriesClient
         /// <returns>All topics now associated with the repository.</returns>
         Task<RepositoryTopics> ReplaceAllTopics(string owner, string name, RepositoryTopics topics);
 
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repos/{owner}/{repo}/codeowners/errors")]
+        Task<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(string owner, string name);
+
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="repositoryId">The Id of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repositories/{id}/codeowners/errors")]
+        Task<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(long repositoryId);
     }
 }
diff --git a/Octokit/Clients/RepositoriesClient.cs b/Octokit/Clients/RepositoriesClient.cs
index 4d4bfe3bad..df7d3f4fe6 100644
--- a/Octokit/Clients/RepositoriesClient.cs
+++ b/Octokit/Clients/RepositoriesClient.cs
@@ -11,7 +11,7 @@ namespace Octokit
     /// A client for GitHub's Repositories API.
     /// </summary>
     /// <remarks>
-    /// See the <a href="http://developer.github.com/v3/repos/">Repositories API documentation</a> for more details.
+    /// See the <a href="https://docs.github.com/rest/repos/repos">Repositories API documentation</a> for more details.
     /// </remarks>
     public class RepositoriesClient : ApiClient, IRepositoriesClient
     {
@@ -1114,6 +1114,32 @@ public Task<RepositoryContentLicense> GetLicenseContents(long repositoryId)
             return ApiConnection.Get<RepositoryContentLicense>(ApiUrls.RepositoryLicense(repositoryId));
         }
 
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repos/{owner}/{repo}/codeowners/errors")]
+        public Task<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(string owner, string name)
+        {
+            Ensure.ArgumentNotNullOrEmptyString(owner, nameof(owner));
+            Ensure.ArgumentNotNullOrEmptyString(name, nameof(name));
+
+            return ApiConnection.Get<RepositoryCodeOwnersErrors>(ApiUrls.RepositoryCodeOwnersErrors(owner, name));
+        }
+
+        /// <summary>
+        /// Gets the list of errors in the codeowners file
+        /// </summary>
+        /// <param name="repositoryId">The Id of the repository</param>
+        /// <returns>Returns the list of errors in the codeowners files</returns>
+        [ManualRoute("GET", "/repositories/{id}/codeowners/errors")]
+        public Task<RepositoryCodeOwnersErrors> GetAllCodeOwnersErrors(long repositoryId)
+        {
+            return ApiConnection.Get<RepositoryCodeOwnersErrors>(ApiUrls.RepositoryCodeOwnersErrors(repositoryId));
+        }
+
         /// <summary>
         /// A client for GitHub's Repository Pages API.
         /// </summary>
diff --git a/Octokit/Helpers/ApiUrls.cs b/Octokit/Helpers/ApiUrls.cs
index df99a617c0..098de9c8ef 100644
--- a/Octokit/Helpers/ApiUrls.cs
+++ b/Octokit/Helpers/ApiUrls.cs
@@ -1995,6 +1995,27 @@ public static Uri SearchLabels()
             return "search/labels".FormatUri();
         }
 
+        /// <summary>
+        /// Returns the <see cref="Uri"/> for repository codeowners errors.
+        /// </summary>
+        /// <param name="owner">The owner of the repository</param>
+        /// <param name="name">The name of the repository</param>
+        /// <returns>the <see cref="Uri"/> for repository topics.</returns>
+        public static Uri RepositoryCodeOwnersErrors(string owner, string name)
+        {
+            return "repos/{0}/{1}/codeowners/errors".FormatUri(owner, name);
+        }
+
+        /// <summary>
+        /// Returns the <see cref="Uri"/> for repository codeowners errors.
+        /// </summary>
+        /// <param name="repositoryId">The ID of the repository</param>
+        /// <returns>the <see cref="Uri"/> for repository topics.</returns>
+        public static Uri RepositoryCodeOwnersErrors(long repositoryId)
+        {
+            return "repositories/{0}/codeowners/errors".FormatUri(repositoryId);
+        }
+
         /// <summary>
         /// Returns the <see cref="Uri"/> for repository contributors.
         /// </summary>
diff --git a/Octokit/Models/Response/RepositoryCodeOwnersErrors.cs b/Octokit/Models/Response/RepositoryCodeOwnersErrors.cs
new file mode 100644
index 0000000000..0248f0c190
--- /dev/null
+++ b/Octokit/Models/Response/RepositoryCodeOwnersErrors.cs
@@ -0,0 +1,58 @@
+using Octokit.Internal;
+using System.Collections.Generic;
+using System.Diagnostics;
+
+namespace Octokit
+{
+    [DebuggerDisplay("{DebuggerDisplay,nq}")]
+    public class RepositoryCodeOwnersErrors
+    {
+        public RepositoryCodeOwnersErrors()
+        {
+        }
+
+        public RepositoryCodeOwnersErrors(List<RepositoryCodeOwnersError> errors)
+        {
+            Errors = errors;
+        }
+
+        public IReadOnlyList<RepositoryCodeOwnersError> Errors { get; private set; }
+
+        [DebuggerDisplay("{DebuggerDisplay,nq}")]
+        public class RepositoryCodeOwnersError
+        {
+            public RepositoryCodeOwnersError()
+            {
+            }
+
+            public RepositoryCodeOwnersError(int line, int column, string kind, string source, string suggestion, string message, string path)
+            {
+                Line = line;
+                Column = column;
+                Kind = kind;
+                Source = source;
+                Suggestion = suggestion;
+                Message = message;
+                Path = path;
+            }
+
+            public int Line { get; private set; }
+
+            public int Column { get; private set; }
+
+            public string Kind { get; private set; }
+
+            public string Source { get; private set; }
+            
+            public string Suggestion { get; private set; }
+
+            public string Message { get; private set; }
+            
+            public string Path { get; private set; }
+
+            internal string DebuggerDisplay => new SimpleJsonSerializer().Serialize(this);
+        }
+
+        internal string DebuggerDisplay => new SimpleJsonSerializer().Serialize(this);
+    }
+}
diff --git a/Octokit/Models/Response/RepositoryTag.cs b/Octokit/Models/Response/RepositoryTag.cs
index 37ce9baf20..74c0769246 100644
--- a/Octokit/Models/Response/RepositoryTag.cs
+++ b/Octokit/Models/Response/RepositoryTag.cs
@@ -1,4 +1,5 @@
-using System.Diagnostics;
+using System.Collections.Generic;
+using System.Diagnostics;
 using System.Diagnostics.CodeAnalysis;
 using System.Globalization;