diff --git a/src/problem.ts b/src/problem.ts
index 6930e3b..2b8a5e1 100644
--- a/src/problem.ts
+++ b/src/problem.ts
@@ -7,7 +7,7 @@ import * as path from 'path';
 import * as os from 'os';
 import {log} from './log';
 import {config} from './config';
-import {decodeBufferWithConfidence} from './utils';
+import {decodeBufferWithConfidence, sanitizeBuildLogText} from './utils';
 
 // the problem list class
 export class ProblemList implements vscode.Disposable {
@@ -50,7 +50,7 @@ export class ProblemList implements vscode.Disposable {
 
                 if (!err && content) {
                     const decoded = decodeBufferWithConfidence(content);
-                    const text = decoded.text;
+                    const text = sanitizeBuildLogText(decoded.text);
                     // log.verbose(`diagnose logfile encoding: ${decoded.encoding}`);
 
                     // init regex of gcc/clang output
diff --git a/src/terminal.ts b/src/terminal.ts
index 9a27a0f..3afefbe 100644
--- a/src/terminal.ts
+++ b/src/terminal.ts
@@ -57,7 +57,13 @@ export class Terminal implements vscode.Disposable {
 
         var options = {"cwd": config.workingDirectory};
         if (withlog) {
-            options["env"] = {XMAKE_LOGFILE: this.logfile};
+            options["env"] = {
+                XMAKE_LOGFILE: this.logfile,
+                XMAKE_COLORTERM: "nocolor",
+                COLORTERM: "nocolor",
+                NO_COLOR: "1",
+                CLICOLOR: "0"
+            };
         }
 
         const kind: vscode.TaskDefinition = {
@@ -79,7 +85,13 @@ export class Terminal implements vscode.Disposable {
 
         var options = {"cwd": config.workingDirectory};
         if (withlog) {
-            options["env"] = {XMAKE_LOGFILE: this.logfile};
+            options["env"] = {
+                XMAKE_LOGFILE: this.logfile,
+                XMAKE_COLORTERM: "nocolor",
+                COLORTERM: "nocolor",
+                NO_COLOR: "1",
+                CLICOLOR: "0"
+            };
         }
 
         const kind: vscode.TaskDefinition = {
diff --git a/src/utils.ts b/src/utils.ts
index d0cd164..f773774 100644
--- a/src/utils.ts
+++ b/src/utils.ts
@@ -114,6 +114,23 @@ export function decodeBufferWithConfidence(buffer: Buffer): { encoding: string;
     return { encoding: 'utf8-fallback', text: utf8Text };
 }
 
+// Remove terminal control bytes so diagnostics parser gets stable plain text.
+export function sanitizeBuildLogText(text: string): string {
+    let cleaned = text.replace(/\r\n/g, '\n').replace(/\r/g, '\n');
+
+    // Strip ANSI escape sequences (e.g. colors, cursor controls).
+    cleaned = cleaned.replace(/\u001B\[[0-?]*[ -/]*[@-~]/g, '');
+
+    // Apply backspaces to avoid broken words from in-place terminal updates.
+    while (/\x08/.test(cleaned)) {
+        cleaned = cleaned.replace(/[^\n]\x08/g, '').replace(/\x08/g, '');
+    }
+
+    // Remove other non-printable control chars but keep tab/newline.
+    cleaned = cleaned.replace(/[\x00-\x08\x0B-\x1F\x7F]/g, '');
+    return cleaned;
+}
+
 // simplistic function for just checking if a string can be parsed as json
 export function isJson(text?: string): boolean {
     try {