Failed to run a tick for Main: System.MissingMethodException

[markmorris]

Failed to run a tick for Main: System.MissingMethodException: Method not found: void System.Reflection.PortableExecutable.DebugDirectoryBuilder.AddPdbChecksumEntry(string,System.Collections.Immutable.ImmutableArray`1<byte>)

  at Microsoft.CodeAnalysis.Compilation.SerializePeToStream (Microsoft.CodeAnalysis.Emit.CommonPEModuleBuilder moduleBeingBuilt, Microsoft.CodeAnalysis.DiagnosticBag metadataDiagnostics, Microsoft.CodeAnalysis.CommonMessageProvider messageProvider, System.Func`1[TResult] getPeStream, System.Func`1[TResult] getMetadataPeStreamOpt, System.Func`1[TResult] getPortablePdbStreamOpt, Microsoft.Cci.PdbWriter nativePdbWriterOpt, System.String pdbPathOpt, System.Boolean metadataOnly, System.Boolean includePrivateMembers, System.Boolean isDeterministic, System.Boolean emitTestCoverageData, System.Nullable`1[T] privateKeyOpt, System.Threading.CancellationToken cancellationToken) [0x0002b] in <d2a099d1c1454fc88ba76c52254e7d7d>:0 

  at Microsoft.CodeAnalysis.Compilation.SerializeToPeStream (Microsoft.CodeAnalysis.Emit.CommonPEModuleBuilder moduleBeingBuilt, Microsoft.CodeAnalysis.Compilation+EmitStreamProvider peStreamProvider, Microsoft.CodeAnalysis.Compilation+EmitStreamProvider metadataPEStreamProvider, Microsoft.CodeAnalysis.Compilation+EmitStreamProvider pdbStreamProvider, System.Func`2[T,TResult] testSymWriterFactory, Microsoft.CodeAnalysis.DiagnosticBag diagnostics, System.Boolean metadataOnly, System.Boolean includePrivateMembers, System.Boolean emitTestCoverageData, System.String pePdbFilePath, System.Nullable`1[T] privateKeyOpt, System.Threading.CancellationToken cancellationToken) [0x00150] in <d2a099d1c1454fc88ba76c52254e7d7d>:0 

 

  at Microsoft.CodeAnalysis.Compilation.Emit (System.IO.Stream peStream, System.IO.Stream metadataPEStream, System.IO.Stream pdbStream, System.IO.Stream xmlDocumentationStream, System.IO.Stream win32Resources, System.Collections.Generic.IEnumerable`1[T] manifestResources, Microsoft.CodeAnalysis.Emit.EmitOptions options, Microsoft.CodeAnalysis.IMethodSymbol debugEntryPoint, System.IO.Stream sourceLinkStream, System.Collections.Generic.IEnumerable`1[T] embeddedTexts, Microsoft.CodeAnalysis.CodeGen.CompilationTestData testData, System.Threading.CancellationToken cancellationToken) [0x00122] in <d2a099d1c1454fc88ba76c52254e7d7d>:0 

  at Microsoft.CodeAnalysis.Compilation.Emit (System.IO.Stream peStream, System.IO.Stream pdbStream, System.IO.Stream xmlDocumentationStream, System.IO.Stream win32Resources, System.Collections.Generic.IEnumerable`1[T] manifestResources, Microsoft.CodeAnalysis.Emit.EmitOptions options, Microsoft.CodeAnalysis.IMethodSymbol debugEntryPoint, System.IO.Stream sourceLinkStream, System.Collections.Generic.IEnumerable`1[T] embeddedTexts, System.IO.Stream metadataPEStream, System.Threading.CancellationToken cancellationToken) [0x001bc] in <d2a099d1c1454fc88ba76c52254e7d7d>:0 

  at FxMigrant.Main+<>c__DisplayClass6_1.<LoadMigrationAssembly>b__0 () [0x0014e] in <f049d533ef2948c19706740b6c40d704>:0 

 

  at System.Threading.Tasks.Task.InnerInvoke () [0x0000f] in <fbc4ec45371543bfba3678ebb82caf6d>:0 

  at System.Threading.Tasks.Task.Execute () [0x00000] in <fbc4ec45371543bfba3678ebb82caf6d>:0 

--- End of stack trace from previous location where exception was thrown ---

  at FxMigrant.Main.LoadMigrationAssembly (System.String resourceName, System.String fileName) [0x00208] in <f049d533ef2948c19706740b6c40d704>:0 

  at FxMigrant.Main.MigrateResource (System.String resourceName) [0x00185] in <f049d533ef2948c19706740b6c40d704>:0 

  at FxMigrant.Main.RunTick () [0x000db] in <f049d533ef2948c19706740b6c40d704>:0 

Have no idea how this has happened. Move from one server to another and boom dead.