diff --git a/docs/release-notes/.FSharp.Compiler.Service/9.0.200.md b/docs/release-notes/.FSharp.Compiler.Service/9.0.200.md
index 7c7f9652b19..33125ff07ed 100644
--- a/docs/release-notes/.FSharp.Compiler.Service/9.0.200.md
+++ b/docs/release-notes/.FSharp.Compiler.Service/9.0.200.md
@@ -15,7 +15,8 @@
 * Fix locals allocating for the special `copyOfStruct` defensive copy ([PR #18025](https://github.com/dotnet/fsharp/pull/18025))
 * Fix lowering of computed array expressions when the expression consists of a simple mapping from a `uint64` or `unativeint` array. [PR #18081](https://github.com/dotnet/fsharp/pull/18081)
 * Add missing nullable-metadata for C# consumers of records,exceptions and DU subtypes generated from F# code. [PR #18079](https://github.com/dotnet/fsharp/pull/18079)
-
+* Fix a race condition in file book keeping in the compiler service ([#18008](https://github.com/dotnet/fsharp/pull/18008))
+* Fix trimming '%' characters when lowering interpolated string to a concat call [PR #18123](https://github.com/dotnet/fsharp/pull/18123)
 
 ### Added
 
@@ -25,6 +26,7 @@
 * Added type conversions cache, only enabled for compiler runs, guarded by language version preview ([PR #17668](https://github.com/dotnet/fsharp/pull/17668))
 * Added project property ParallelCompilation which turns on graph based type checking, parallel ILXGen and parallel optimization. By default on for users of langversion=preview ([PR #17948](https://github.com/dotnet/fsharp/pull/17948))
 * Adding warning when consuming generic method returning T|null for types not supporting nullness (structs,anons,tuples) ([PR #18057](https://github.com/dotnet/fsharp/pull/18057))
+* Sink: report SynPat.ArrayOrList type ([PR #18127](https://github.com/dotnet/fsharp/pull/18127))
 
 ### Changed
 
diff --git a/eng/Versions.props b/eng/Versions.props
index 0245a0d620c..cd72f859965 100644
--- a/eng/Versions.props
+++ b/eng/Versions.props
@@ -184,7 +184,7 @@
     <MicrosoftNETCoreAppRefVersion>3.1.0</MicrosoftNETCoreAppRefVersion>
     <MicrosoftNETCoreILDAsmVersion>5.0.0-preview.7.20364.11</MicrosoftNETCoreILDAsmVersion>
     <MicrosoftNETCoreILAsmVersion>5.0.0-preview.7.20364.11</MicrosoftNETCoreILAsmVersion>
-    <MicrosoftNETTestSdkVersion>17.4.0</MicrosoftNETTestSdkVersion>
+    <MicrosoftNETTestSdkVersion>17.11.1</MicrosoftNETTestSdkVersion>
     <NewtonsoftJsonVersion>13.0.3</NewtonsoftJsonVersion>
     <RoslynToolsSignToolVersion>1.0.0-beta2-dev3</RoslynToolsSignToolVersion>
     <StreamJsonRpcVersion>2.18.48</StreamJsonRpcVersion>
diff --git a/src/Compiler/Checking/CheckPatterns.fs b/src/Compiler/Checking/CheckPatterns.fs
index 3f97cf81780..0c496517fd4 100644
--- a/src/Compiler/Checking/CheckPatterns.fs
+++ b/src/Compiler/Checking/CheckPatterns.fs
@@ -313,6 +313,7 @@ and TcPat warnOnUpper (cenv: cenv) env valReprInfo vFlags (patEnv: TcPatLinearEn
         TcPat warnOnUpper cenv env None vFlags patEnv ty p
 
     | SynPat.ArrayOrList (isArray, args, m) ->
+        CallExprHasTypeSink cenv.tcSink (m, env.NameEnv, ty, env.AccessRights)
         TcPatArrayOrList warnOnUpper cenv env vFlags patEnv ty isArray args m
 
     | SynPat.Record (flds, m) ->
diff --git a/src/Compiler/Checking/Expressions/CheckExpressions.fs b/src/Compiler/Checking/Expressions/CheckExpressions.fs
index b13e3d01d12..16dc49c1a61 100644
--- a/src/Compiler/Checking/Expressions/CheckExpressions.fs
+++ b/src/Compiler/Checking/Expressions/CheckExpressions.fs
@@ -174,7 +174,7 @@ let (|WithTrailingStringSpecifierRemoved|) (s: string) =
         let i = s.AsSpan(0, s.Length - 2).LastIndexOfAnyExcept '%'
         let diff = s.Length - 2 - i
         if diff &&& 1 <> 0 then
-            s[..i]
+            s[..s.Length - 3]
         else
             s
     else
diff --git a/src/Compiler/Utilities/range.fs b/src/Compiler/Utilities/range.fs
index 6d0002a97ba..09633136dbe 100755
--- a/src/Compiler/Utilities/range.fs
+++ b/src/Compiler/Utilities/range.fs
@@ -196,38 +196,43 @@ type FileIndexTable() =
         match fileToIndexTable.TryGetValue filePath with
         | true, idx -> idx
         | _ ->
-
-            // Try again looking for a normalized entry.
-            let normalizedFilePath =
-                if normalize then
-                    FileSystem.NormalizePathShim filePath
-                else
-                    filePath
-
-            match fileToIndexTable.TryGetValue normalizedFilePath with
-            | true, idx ->
-                // Record the non-normalized entry if necessary
-                if filePath <> normalizedFilePath then
-                    lock fileToIndexTable (fun () -> fileToIndexTable[filePath] <- idx)
-
-                // Return the index
-                idx
-
-            | _ ->
-                lock fileToIndexTable (fun () ->
-                    // Get the new index
-                    let idx = indexToFileTable.Count
-
-                    // Record the normalized entry
-                    indexToFileTable.Add normalizedFilePath
-                    fileToIndexTable[normalizedFilePath] <- idx
-
-                    // Record the non-normalized entry if necessary
-                    if filePath <> normalizedFilePath then
-                        fileToIndexTable[filePath] <- idx
-
-                    // Return the index
-                    idx)
+            // If a write operation can happen, we have to lock the whole read-check-write to avoid race conditions
+            lock fileToIndexTable
+            <| fun () ->
+                match fileToIndexTable.TryGetValue filePath with
+                | true, idx -> idx
+                | _ ->
+
+                    // Try again looking for a normalized entry.
+                    let normalizedFilePath =
+                        if normalize then
+                            FileSystem.NormalizePathShim filePath
+                        else
+                            filePath
+
+                    match fileToIndexTable.TryGetValue normalizedFilePath with
+                    | true, idx ->
+                        // Record the non-normalized entry if necessary
+                        if filePath <> normalizedFilePath then
+                            fileToIndexTable[filePath] <- idx
+
+                        // Return the index
+                        idx
+
+                    | _ ->
+                        // Get the new index
+                        let idx = indexToFileTable.Count
+
+                        // Record the normalized entry
+                        indexToFileTable.Add normalizedFilePath
+                        fileToIndexTable[normalizedFilePath] <- idx
+
+                        // Record the non-normalized entry if necessary
+                        if filePath <> normalizedFilePath then
+                            fileToIndexTable[filePath] <- idx
+
+                        // Return the index
+                        idx
 
     member t.IndexToFile n =
         if n < 0 then
diff --git a/tests/EndToEndBuildTests/BasicProvider/BasicProvider.Tests/BasicProvider.Tests.fsproj b/tests/EndToEndBuildTests/BasicProvider/BasicProvider.Tests/BasicProvider.Tests.fsproj
index 4e4aef01856..4bc1b805799 100644
--- a/tests/EndToEndBuildTests/BasicProvider/BasicProvider.Tests/BasicProvider.Tests.fsproj
+++ b/tests/EndToEndBuildTests/BasicProvider/BasicProvider.Tests/BasicProvider.Tests.fsproj
@@ -21,7 +21,6 @@
         <PackagePath>content\myfiles\</PackagePath>
     </Content>
     <PackageReference Include="BasicProvider" Version="1.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
   </ItemGroup>
 
   <Target Name="RemovePackagesFromCache" BeforeTargets="Restore">
diff --git a/tests/EndToEndBuildTests/ComboProvider/ComboProvider.Tests/ComboProvider.Tests.fsproj b/tests/EndToEndBuildTests/ComboProvider/ComboProvider.Tests/ComboProvider.Tests.fsproj
index d4d410bacd4..69a4cd8855d 100644
--- a/tests/EndToEndBuildTests/ComboProvider/ComboProvider.Tests/ComboProvider.Tests.fsproj
+++ b/tests/EndToEndBuildTests/ComboProvider/ComboProvider.Tests/ComboProvider.Tests.fsproj
@@ -18,7 +18,6 @@
     </None>
 
     <PackageReference Include="ComboProvider" Version="1.0.0" />
-    <PackageReference Include="Microsoft.NET.Test.Sdk" Version="17.3.1" />
   </ItemGroup>
 
   <Target Name="RemovePackagesFromCache" BeforeTargets="Restore">
diff --git a/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj b/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
index 4338fbd807b..e8f044ed2f4 100644
--- a/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
+++ b/tests/FSharp.Compiler.ComponentTests/FSharp.Compiler.ComponentTests.fsproj
@@ -317,6 +317,7 @@
     <Compile Include="Miscellaneous\MigratedOverloadTests.fs" />
     <Compile Include="Miscellaneous\MigratedTypeCheckTests.fs" />
     <Compile Include="Miscellaneous\GraphTests.fs" />
+    <Compile Include="Miscellaneous\FileIndex.fs" />
     <Compile Include="Signatures\TestHelpers.fs" />
     <Compile Include="Signatures\ModuleOrNamespaceTests.fs" />
     <Compile Include="Signatures\RecordTests.fs" />
diff --git a/tests/FSharp.Compiler.ComponentTests/Language/InterpolatedStringsTests.fs b/tests/FSharp.Compiler.ComponentTests/Language/InterpolatedStringsTests.fs
index b4e2cc8eab9..e7c18f0d679 100644
--- a/tests/FSharp.Compiler.ComponentTests/Language/InterpolatedStringsTests.fs
+++ b/tests/FSharp.Compiler.ComponentTests/Language/InterpolatedStringsTests.fs
@@ -130,6 +130,17 @@ type Foo () =
         |> compile
         |> shouldSucceed
 
+    [<Fact>]
+    let ``Percent signs and format specifiers with string expression`` () =
+        Fsx """
+let x = "abc"
+let s = $"%%%s{x}%%"
+printfn "%s" s
+        """
+        |> compileExeAndRun
+        |> shouldSucceed
+        |> withStdOutContains "%abc%"
+
     [<Theory>]
     // Test different number of interpolated string parts
     [<InlineData("$\"\"\"abc{\"d\"}e\"\"\"")>]
diff --git a/tests/FSharp.Compiler.ComponentTests/Miscellaneous/FileIndex.fs b/tests/FSharp.Compiler.ComponentTests/Miscellaneous/FileIndex.fs
new file mode 100644
index 00000000000..0d5caabb982
--- /dev/null
+++ b/tests/FSharp.Compiler.ComponentTests/Miscellaneous/FileIndex.fs
@@ -0,0 +1,21 @@
+module Miscellaneous.FileIndex
+
+open FSharp.Compiler.Text
+open System.Threading.Tasks
+open Xunit
+
+// This is a regression test for a bug that existed in FileIndex.fileIndexOfFile
+[<Fact>]
+let NoRaceCondition() =
+    let parallelOptions = ParallelOptions()
+    let mutable count = 10000
+    while count > 0 do
+        let file = $"test{count}.fs"
+        let files = Array.create 2 file
+        let indices = Array.create 2 -1
+        let getFileIndex i = indices[i] <- FileIndex.fileIndexOfFile files[i]
+        Parallel.For(0, files.Length, parallelOptions, getFileIndex) |> ignore
+        if indices[0] <> indices[1] then
+            Assert.Fail $"Found different indices: {indices[0]} and {indices[1]}"
+        count <- count - 1
+            
\ No newline at end of file
diff --git a/tests/ILVerify/ilverify.ps1 b/tests/ILVerify/ilverify.ps1
index 23618d1a1b1..ab1e2d316c2 100644
--- a/tests/ILVerify/ilverify.ps1
+++ b/tests/ILVerify/ilverify.ps1
@@ -162,7 +162,7 @@ foreach ($project in $projects.Keys) {
             } else {
                 Write-Host "ILverify output does not match baseline, differences:"
 
-                $cmp | Format-Table | Out-String | Write-Host
+                $cmp | Format-Table -AutoSize -Wrap | Out-String | Write-Host
 
                 # Update baselines if TEST_UPDATE_BSL is set to 1
                 if ($env:TEST_UPDATE_BSL -eq "1") {
@@ -185,4 +185,4 @@ if ($failed) {
     exit 1
 }
 
-exit 0
\ No newline at end of file
+exit 0
diff --git a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_net9.0.bsl b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_net9.0.bsl
index c527d99ccf5..03328728f4c 100644
--- a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_net9.0.bsl
+++ b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_net9.0.bsl
@@ -59,7 +59,7 @@
 [IL]: Error [StackUnexpected]: : FSharp.Compiler.AbstractIL.IL::parseILVersion(string)][offset 0x0000000B][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : FSharp.Compiler.AbstractIL.IL::parseILVersion(string)][offset 0x00000021][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$FSharp.Compiler.DiagnosticsLogger::.cctor()][offset 0x000000CD][found Char] Unexpected type on the stack.
-[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@543::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
+[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@548::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000037][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000043][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$Internal.Utilities.XmlAdapters::.cctor()][offset 0x0000000A][found Char] Unexpected type on the stack.
diff --git a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_netstandard2.0.bsl b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_netstandard2.0.bsl
index 7d4eff968ac..a863787a54e 100644
--- a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_netstandard2.0.bsl
+++ b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Debug_netstandard2.0.bsl
@@ -84,7 +84,7 @@
 [IL]: Error [StackUnexpected]: : Internal.Utilities.FSharpEnvironment+probePathForDotnetHost@321::Invoke([FSharp.Core]Microsoft.FSharp.Core.Unit)][offset 0x00000028][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : FSharp.Compiler.CodeAnalysis.SimulatedMSBuildReferenceResolver+Pipe #6 input at line 68@68::FSharp.Compiler.CodeAnalysis.ILegacyReferenceResolver.Resolve([FSharp.Compiler.Service]FSharp.Compiler.CodeAnalysis.LegacyResolutionEnvironment, [S.P.CoreLib]System.Tuple`2<string,string>[], string, [FSharp.Core]Microsoft.FSharp.Collections.FSharpList`1<string>, string, string, [FSharp.Core]Microsoft.FSharp.Collections.FSharpList`1<string>, string, [FSharp.Core]Microsoft.FSharp.Core.FSharpFunc`2<string,Microsoft.FSharp.Core.Unit>, [FSharp.Core]Microsoft.FSharp.Core.FSharpFunc`2<bool,Microsoft.FSharp.Core.FSharpFunc`2<string,Microsoft.FSharp.Core.FSharpFunc`2<string,Microsoft.FSharp.Core.Unit>>>)][offset 0x0000034D][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$FSharp.Compiler.DiagnosticsLogger::.cctor()][offset 0x000000CD][found Char] Unexpected type on the stack.
-[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@543::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
+[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@548::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000037][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000043][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$Internal.Utilities.XmlAdapters::.cctor()][offset 0x0000000A][found Char] Unexpected type on the stack.
diff --git a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_net9.0.bsl b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_net9.0.bsl
index a930478a45e..d1f7525cef2 100644
--- a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_net9.0.bsl
+++ b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_net9.0.bsl
@@ -85,7 +85,7 @@
 [IL]: Error [StackUnexpected]: : FSharp.Compiler.AbstractIL.IL::parseILVersion(string)][offset 0x0000000B][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : FSharp.Compiler.AbstractIL.IL::parseILVersion(string)][offset 0x00000021][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$FSharp.Compiler.DiagnosticsLogger::.cctor()][offset 0x000000B6][found Char] Unexpected type on the stack.
-[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@543::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
+[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@548::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000035][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000041][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$Internal.Utilities.XmlAdapters::.cctor()][offset 0x0000000A][found Char] Unexpected type on the stack.
diff --git a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_netstandard2.0.bsl b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_netstandard2.0.bsl
index b97ede137b1..9de22b5cd79 100644
--- a/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_netstandard2.0.bsl
+++ b/tests/ILVerify/ilverify_FSharp.Compiler.Service_Release_netstandard2.0.bsl
@@ -111,7 +111,7 @@
 [IL]: Error [StackUnexpected]: : Internal.Utilities.FSharpEnvironment::probePathForDotnetHost@320([FSharp.Core]Microsoft.FSharp.Core.Unit)][offset 0x0000002A][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : FSharp.Compiler.CodeAnalysis.SimulatedMSBuildReferenceResolver+SimulatedMSBuildResolver@68::FSharp.Compiler.CodeAnalysis.ILegacyReferenceResolver.Resolve([FSharp.Compiler.Service]FSharp.Compiler.CodeAnalysis.LegacyResolutionEnvironment, [S.P.CoreLib]System.Tuple`2<string,string>[], string, [FSharp.Core]Microsoft.FSharp.Collections.FSharpList`1<string>, string, string, [FSharp.Core]Microsoft.FSharp.Collections.FSharpList`1<string>, string, [FSharp.Core]Microsoft.FSharp.Core.FSharpFunc`2<string,Microsoft.FSharp.Core.Unit>, [FSharp.Core]Microsoft.FSharp.Core.FSharpFunc`2<bool,Microsoft.FSharp.Core.FSharpFunc`2<string,Microsoft.FSharp.Core.FSharpFunc`2<string,Microsoft.FSharp.Core.Unit>>>)][offset 0x000002F5][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$FSharp.Compiler.DiagnosticsLogger::.cctor()][offset 0x000000B6][found Char] Unexpected type on the stack.
-[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@543::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
+[IL]: Error [CallVirtOnValueType]: : FSharp.Compiler.Text.RangeModule+comparer@548::System.Collections.Generic.IEqualityComparer<FSharp.Compiler.Text.Range>.GetHashCode([FSharp.Compiler.Service]FSharp.Compiler.Text.Range)][offset 0x00000002] Callvirt on a value type method.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000035][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : Internal.Utilities.PathMapModule::applyDir([FSharp.Compiler.Service]Internal.Utilities.PathMap, string)][offset 0x00000041][found Char] Unexpected type on the stack.
 [IL]: Error [StackUnexpected]: : <StartupCode$FSharp-Compiler-Service>.$Internal.Utilities.XmlAdapters::.cctor()][offset 0x0000000A][found Char] Unexpected type on the stack.