Simply update build number through ##vso command

package.json

@@ -37,7 +37,6 @@
     "@types/rimraf": "^2.0.2",
     "@types/semver": "^5.5.0",
     "@types/yargs": "^12.0.8",
-    "azure-devops-node-api": "^7.0.0",
     "chai": "^4.2.0",
     "lodash": "^4.17.11",
     "mocha": "^5.2.0",

scripts/build/setBuildNumber.ts

@@ -1,40 +1,18 @@
-import * as azdev from 'azure-devops-node-api';
-
 import { getBaseBuildConstants } from "../util";
 import ERROR_CODES from './errorCodes';
 
-
 (async () => {
   try {
-
     const buildConstants = getBaseBuildConstants();
-    const orgUrl = "https://dev.azure.com/peabnuts123";
-    const token: string = process.env.AZURE_DEVOPS_TOKEN as string;
-    const definitionId = parseInt(process.env.SYSTEM_DEFINITIONID as string, 10);
-    const projectName = process.env.SYSTEM_TEAMPROJECT as string;
     const branchName = process.env.BUILD_SOURCEBRANCHNAME as string;
     const buildId = process.env.BUILD_BUILDID as string;
 
-    const authHandler = azdev.getPersonalAccessTokenHandler(token);
-    const connection = new azdev.WebApi(orgUrl, authHandler);
-    const build = await connection.getBuildApi();
-    const buildDefinition = await build.getDefinition(definitionId, projectName);
-
     let version = buildConstants.packageJson.version;
     if (branchName !== 'master') {
       version += `-${branchName}b${buildId}`;
     }
 
-    buildDefinition.variables = {
-      ...buildDefinition.variables,
-      VERSION: {
-        allowOverride: false,
-        isSecret: false,
-        value: version,
-      },
-    };
-
-    await build.updateDefinition(buildDefinition, definitionId, projectName);
+    console.log(`##vso[build.updatebuildnumber]${version}`);
   } catch (e) {
     console.error(e);
     console.error("Failed to set build number. ");