diff --git a/build/lib/i18n.ts b/build/lib/i18n.ts
index 2dbfe63bca2a80024839da69ea336dd8196ef637..ee75ac1ec01479878d52dbca72d0c25e5d97c7a2 100644
--- a/build/lib/i18n.ts
+++ b/build/lib/i18n.ts
@@ -24,7 +24,7 @@ function log(message: any, ...rest: any[]): void {
 }
 
 export interface Language {
-	id: string; // laguage id, e.g. zh-tw, de
+	id: string; // language id, e.g. zh-tw, de
 	translationId?: string; // language id used in translation tools, e.g zh-hant, de (optional, if not set, the id is used)
 	folderName?: string; // language specific folder name, e.g. cht, deu  (optional, if not set, the id is used)
 }
@@ -1370,4 +1370,4 @@ function decodeEntities(value: string): string {
 
 function pseudify(message: string) {
 	return '\uFF3B' + message.replace(/[aouei]/g, '$&$&') + '\uFF3D';
-}
\ No newline at end of file
+}
diff --git a/build/lib/task.js b/build/lib/task.js
index 4555bbdd068c18847f5b97b46357f5fc58845a49..f1e6e3f6245ded770b71706abfb5f9a61da32fa6 100644
--- a/build/lib/task.js
+++ b/build/lib/task.js
@@ -32,7 +32,7 @@ async function _doExecute(task) {
     // Always invoke as if it were a callback task
     return new Promise((resolve, reject) => {
         if (task.length === 1) {
-            // this is a calback task
+            // this is a callback task
             task((err) => {
                 if (err) {
                     return reject(err);
diff --git a/build/lib/task.ts b/build/lib/task.ts
index b1a0c903f801872d6f9f4ec4929f91dc7c56152d..4e571ec9294cde9210d7a06ee649a889752ee5b9 100644
--- a/build/lib/task.ts
+++ b/build/lib/task.ts
@@ -54,7 +54,7 @@ async function _doExecute(task: Task): Promise<void> {
 	// Always invoke as if it were a callback task
 	return new Promise((resolve, reject) => {
 		if (task.length === 1) {
-			// this is a calback task
+			// this is a callback task
 			task((err) => {
 				if (err) {
 					return reject(err);
@@ -122,4 +122,4 @@ export function define(name: string, task: Task): Task {
 	task.taskName = name;
 	task.displayName = name;
 	return task;
-}
\ No newline at end of file
+}
diff --git a/build/npm/update-localization-extension.js b/build/npm/update-localization-extension.js
index 50dcaca3eb6d7e757140dc4bcdefaef6b830a988..b1656dc88f447d6930d53706cc5bafa44526f278 100644
--- a/build/npm/update-localization-extension.js
+++ b/build/npm/update-localization-extension.js
@@ -74,7 +74,7 @@ function update(options) {
 			let translationPaths = [];
 			i18n.pullI18nPackFiles(server, userName, apiToken, { id: languageId }, translationPaths)
 				.on('error', (error) => {
-					console.log(`Error occured while importing translations:`);
+					console.log(`Error occurred while importing translations:`);
 					translationPaths = undefined;
 					if (Array.isArray(error)) {
 						error.forEach(console.log);
@@ -100,7 +100,7 @@ function update(options) {
 			gulp.src(path.join(location, languageId, '**', '*.xlf'))
 				.pipe(i18n.prepareI18nPackFiles(i18n.externalExtensionsWithTranslations, translationPaths, languageId === 'ps'))
 				.on('error', (error) => {
-					console.log(`Error occured while importing translations:`);
+					console.log(`Error occurred while importing translations:`);
 					translationPaths = undefined;
 					if (Array.isArray(error)) {
 						error.forEach(console.log);
diff --git a/build/tsconfig.json b/build/tsconfig.json
index 46ad745bc23d30040a83714b58066941aa2cb65c..df15ccdd1beb46f26b14096af41f6fdebea8be70 100644
--- a/build/tsconfig.json
+++ b/build/tsconfig.json
@@ -8,7 +8,7 @@
 		"resolveJsonModule": true,
 		"experimentalDecorators": true,
 		// enable JavaScript type checking for the language service
-		// use the tsconfig.build.json for compiling wich disable JavaScript
+		// use the tsconfig.build.json for compiling which disable JavaScript
 		// type checking so that JavaScript file are not transpiled
 		"allowJs": true,
 		"checkJs": true,
@@ -22,4 +22,4 @@
 	"exclude": [
 		"node_modules/**"
 	]
-}
\ No newline at end of file
+}