diff --git a/package-lock.json b/package-lock.json
index 4e64be9..f508d7e 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,6 +1,6 @@
 {
   "name": "vscode-dtdl",
-  "version": "0.2.0",
+  "version": "1.0.0-rc2",
   "lockfileVersion": 1,
   "requires": true,
   "dependencies": {
@@ -2466,9 +2466,9 @@
       }
     },
     "dtdl-language-server": {
-      "version": "0.4.2",
-      "resolved": "https://registry.npmjs.org/dtdl-language-server/-/dtdl-language-server-0.4.2.tgz",
-      "integrity": "sha512-7taXkWOLYwl6aOsL+OiMw4CZtp3o4L5BnKN/wEu0M1Huezk1EIL4jaMB2KPBQB3RKbO4ip9kubT68SdAJ3593g==",
+      "version": "0.4.3",
+      "resolved": "https://registry.npmjs.org/dtdl-language-server/-/dtdl-language-server-0.4.3.tgz",
+      "integrity": "sha512-FoXxrG3VhXRGjruRxx83LzV0unIpPt2B2f4/gICKVm5E6MSpNSglJxEG13pXB7zb4CO7kndDNeqXS2X5iDIyfA==",
       "requires": {
         "commander": "^5.0.0",
         "jsonc-parser": "^2.2.1",
@@ -4764,9 +4764,9 @@
       }
     },
     "jsonc-parser": {
-      "version": "2.3.0",
-      "resolved": "https://registry.npmjs.org/jsonc-parser/-/jsonc-parser-2.3.0.tgz",
-      "integrity": "sha512-b0EBt8SWFNnixVdvoR2ZtEGa9ZqLhbJnOjezn+WP+8kspFm+PFYDN8Z4Bc7pRlDjvuVcADSUkroIuTWWn/YiIA=="
+      "version": "2.3.1",
+      "resolved": "https://registry.npmjs.org/jsonc-parser/-/jsonc-parser-2.3.1.tgz",
+      "integrity": "sha512-H8jvkz1O50L3dMZCsLqiuB2tA7muqbSg1AtGEkN0leAqGjsUzDJir3Zwr02BhqdcITPg3ei3mZ+HjMocAknhhg=="
     },
     "jsonfile": {
       "version": "4.0.0",
diff --git a/package.json b/package.json
index 25d9c47..30d980d 100644
--- a/package.json
+++ b/package.json
@@ -2,9 +2,8 @@
   "name": "vscode-dtdl",
   "displayName": "DTDL",
   "description": "This extension provides syntax highlighting to read and edit JSON documents using the Digital Twins Definition Language",
-  "version": "0.2.0",
+  "version": "1.0.0-rc3",
   "publisher": "vsciot-vscode",
-  "preview": true,
   "aiKey": "[AIKEY PLACEHOLDER]",
   "icon": "logo.png",
   "license": "SEE LICENSE IN LICENSE.txt",
@@ -95,7 +94,7 @@
     "copy-webpack-plugin": "^6.0.1"
   },
   "dependencies": {
-    "dtdl-language-server": "^0.4.2",
+    "dtdl-language-server": "^0.4.3",
     "fs-extra": "^7.0.1",
     "vscode-extension-telemetry": "^0.1.6",
     "vscode-languageclient": "^6.1.3"
diff --git a/snippets/snippets.json b/snippets/snippets.json
index c3547ce..eb158d7 100644
--- a/snippets/snippets.json
+++ b/snippets/snippets.json
@@ -16,7 +16,7 @@
   "Add DTDL Command" : {
     "prefix": "dtc",
     "body" : [
-      "{\n\t\"@type\": \"Command\",\n\t\"name\": \"$1\",\n\t\"schema\": $2\n}"
+      "{\n\t\"@type\": \"Command\",\n\t\"name\": \"$1\"\n}"
     ],
     "description": "Adds a DTDL Command"
   }
diff --git a/src/view/ui.ts b/src/view/ui.ts
index 1947013..544a141 100644
--- a/src/view/ui.ts
+++ b/src/view/ui.ts
@@ -85,6 +85,10 @@ export class UI {
    */
   public static async selectTemplateFile(label: string, folder: string): Promise<string> {
     const files: string[] = Utility.listFile(folder, Constants.TEMPLATE_FILE_GLOB);
+    if (!files.length) {
+      const message = `${UIConstants.TEMPLATES_NOT_FOUND_MSG} ${folder}`;
+      throw new Error(message);
+    }
     if (files.length === 1) {
       return files[0];
     }
diff --git a/src/view/uiConstants.ts b/src/view/uiConstants.ts
index b479831..3fb1b60 100644
--- a/src/view/uiConstants.ts
+++ b/src/view/uiConstants.ts
@@ -9,4 +9,5 @@ export class UIConstants {
   public static readonly SELECT_TEMPLATE_FILE_LABEL = "Select template file";
   public static readonly INPUT_MODEL_NAME_LABEL = "Input device model name";
   public static readonly BROWSE_LABEL = "Browse...";
+  public static readonly TEMPLATES_NOT_FOUND_MSG = "No template is found in folder";
 }