diff --git a/src/harness/harness.ts b/src/harness/harness.ts
index 429a1aab805..b66d08bcb5e 100644
--- a/src/harness/harness.ts
+++ b/src/harness/harness.ts
@@ -1932,5 +1932,5 @@ namespace Harness {
         return { unitName: libFile, content: io.readFile(libFile) };
     }
 
-    if (Error) (<any>Error).stackTraceLimit = 1;
+    if (Error) (<any>Error).stackTraceLimit = 25;
 }
diff --git a/src/harness/harnessLanguageService.ts b/src/harness/harnessLanguageService.ts
index d73f1b60624..513c6be7ee9 100644
--- a/src/harness/harnessLanguageService.ts
+++ b/src/harness/harnessLanguageService.ts
@@ -218,6 +218,9 @@ namespace Harness.LanguageService {
             const snapshot = this.getScriptSnapshot(path);
             return snapshot.getText(0, snapshot.getLength());
         }
+        getTypeRootsVersion() {
+            return 0;
+        }
 
 
         log(s: string): void { }
@@ -367,7 +370,7 @@ namespace Harness.LanguageService {
     function unwrapJSONCallResult(result: string): any {
         const parsedResult = JSON.parse(result);
         if (parsedResult.error) {
-            throw new Error("Language Service Shim Error: " + JSON.stringify(parsedResult.error));
+            throw new Error("Language Service Shim Error: " + JSON.stringify(parsedResult));
         }
         else if (parsedResult.canceled) {
             throw new ts.OperationCanceledException();
diff --git a/src/server/editorServices.ts b/src/server/editorServices.ts
index 2ae3f812d43..4718fa36e4d 100644
--- a/src/server/editorServices.ts
+++ b/src/server/editorServices.ts
@@ -416,7 +416,7 @@ namespace ts.server {
                 // it is not likely to affect the project for other files opened by the client. We can
                 // just update the current project.
 
-                this.logger.info('Updating configured project');
+                this.logger.info("Updating configured project");
                 this.updateConfiguredProject(project);
 
                 // Call refreshInferredProjects to clean up inferred projects we may have
diff --git a/src/server/utilities.ts b/src/server/utilities.ts
index 1814e5920e2..a7a0160ea62 100644
--- a/src/server/utilities.ts
+++ b/src/server/utilities.ts
@@ -216,10 +216,6 @@ namespace ts.server {
          * true if config file explicitly listed files
          **/
         configHasFilesProperty?: boolean;
-        /**
-         * true if config file explicitly listed type names
-         **/
-        configHasTypesProperty?: boolean;
         /**
          * these fields can be present in the project file
          **/
diff --git a/src/services/services.ts b/src/services/services.ts
index e369aefa4bd..7ef3a9b0efc 100644
--- a/src/services/services.ts
+++ b/src/services/services.ts
@@ -1188,7 +1188,7 @@ namespace ts {
         /*
          * LS host can optionally implement these methods to support automatic updating when new type libraries are installed
          */
-        getTypeRootsVersion?(): number;
+        getTypeRootsVersion(): number;
 
         /*
          * LS host can optionally implement this method if it wants to be completely in charge of module name resolution.
@@ -3223,7 +3223,7 @@ namespace ts {
 
             const typeRootsVersion = host.getTypeRootsVersion ? host.getTypeRootsVersion() : 0;
             if (lastTypesRootVersion !== typeRootsVersion) {
-                log('TypeRoots version has changed; provide new program');
+                log("TypeRoots version has changed; provide new program");
                 program = undefined;
                 lastTypesRootVersion = typeRootsVersion;
             }
diff --git a/src/services/shims.ts b/src/services/shims.ts
index e5646254518..f2ee5b44090 100644
--- a/src/services/shims.ts
+++ b/src/services/shims.ts
@@ -360,6 +360,9 @@ namespace ts {
         }
 
         public getTypeRootsVersion(): number {
+            if (!this.shimHost.getTypeRootsVersion) {
+                return 0;
+            }
             return this.shimHost.getTypeRootsVersion();
         }