diff --git a/dist/index.js b/dist/index.js
index f51c74b0..8b98a176 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -4857,7 +4857,7 @@ var ContainerAppHelper = /** @class */ (function () {
      */
     ContainerAppHelper.prototype.doesContainerAppEnvironmentExist = function (containerAppEnvironment, resourceGroup) {
         return __awaiter(this, void 0, void 0, function () {
-            var command, executionResult, err_7;
+            var command, exitCode, err_7;
             return __generator(this, function (_a) {
                 switch (_a.label) {
                     case 0:
@@ -4866,10 +4866,10 @@ var ContainerAppHelper = /** @class */ (function () {
                     case 1:
                         _a.trys.push([1, 3, , 4]);
                         command = "containerapp env show -n " + containerAppEnvironment + " -g " + resourceGroup + " -o none";
-                        return [4 /*yield*/, new Utility_1.Utility().executeAndthrowIfError("az", command.split(' '))];
+                        return [4 /*yield*/, exec.exec("az", command.split(' '))];
                     case 2:
-                        executionResult = _a.sent();
-                        return [2 /*return*/, !executionResult.stderr];
+                        exitCode = _a.sent();
+                        return [2 /*return*/, exitCode === 0];
                     case 3:
                         err_7 = _a.sent();
                         core.warning(err_7.message);
@@ -5013,7 +5013,7 @@ var ContainerAppHelper = /** @class */ (function () {
                         _a.trys.push([1, 3, , 4]);
                         command = "containerapp env create -n " + name + " -g " + resourceGroup;
                         if (!util.isNullOrEmpty(location)) {
-                            command += " -l " + location;
+                            command += '-l' + ("" + location);
                         }
                         return [4 /*yield*/, new Utility_1.Utility().executeAndthrowIfError("az", command.split(' '))];
                     case 2:
@@ -5105,11 +5105,11 @@ var ContainerAppHelper = /** @class */ (function () {
                         _a.label = 1;
                     case 1:
                         _a.trys.push([1, 3, , 4]);
-                        telemetryArg = "--env CALLER_ID=github-actions-v1";
+                        telemetryArg = "CALLER_ID=github-actions-v1";
                         if (this.disableTelemetry) {
-                            telemetryArg = "--env ORYX_DISABLE_TELEMETRY=true";
+                            telemetryArg = "ORYX_DISABLE_TELEMETRY=true";
                         }
-                        return [4 /*yield*/, new Utility_1.Utility().executeAndthrowIfError("" + PACK_CMD, ['build', "" + imageToDeploy, '--path', "" + appSourcePath, '--builder', "" + ORYX_BUILDER_IMAGE, '--run-image', "mcr.microsoft.com/oryx/" + runtimeStack, '--env', "ORYX_DISABLE_TELEMETRY=true"])];
+                        return [4 /*yield*/, new Utility_1.Utility().executeAndthrowIfError("" + PACK_CMD, ['build', "" + imageToDeploy, '--path', "" + appSourcePath, '--builder', "" + ORYX_BUILDER_IMAGE, '--run-image', "mcr.microsoft.com/oryx/" + runtimeStack, '--env', "" + telemetryArg])];
                     case 2:
                         _a.sent();
                         return [3 /*break*/, 4];
diff --git a/src/ContainerAppHelper.ts b/src/ContainerAppHelper.ts
index ae85c8f5..f8a80182 100644
--- a/src/ContainerAppHelper.ts
+++ b/src/ContainerAppHelper.ts
@@ -180,8 +180,8 @@ export class ContainerAppHelper {
         core.debug(`Attempting to determine if Container App Environment with name "${containerAppEnvironment}" exists in resource group "${resourceGroup}"`);
         try {
             const command = `containerapp env show -n ${containerAppEnvironment} -g ${resourceGroup} -o none`;
-            const executionResult = await new Utility().executeAndthrowIfError(`az`, command.split(' '));
-            return !executionResult.stderr;
+            const exitCode = await exec.exec(`az`, command.split(' '));
+            return exitCode === 0;
         } catch (err) {
             core.warning(err.message);
             return false;
@@ -267,7 +267,7 @@ export class ContainerAppHelper {
         try {
             let command = `containerapp env create -n ${name} -g ${resourceGroup}`;
             if (!util.isNullOrEmpty(location)) {
-                command += ` -l ${location}`;
+                command += '-l' + `${location}`;
             }
             await new Utility().executeAndthrowIfError(`az`, command.split(' '));
         } catch (err) {
@@ -323,11 +323,11 @@ export class ContainerAppHelper {
         runtimeStack: string) {
         core.debug(`Attempting to create a runnable application image using the Oryx++ Builder with image name "${imageToDeploy}"`);
         try {
-            let telemetryArg = `--env CALLER_ID=github-actions-v1`;
+            let telemetryArg = `CALLER_ID=github-actions-v1`;
             if (this.disableTelemetry) {
-                telemetryArg = `--env ORYX_DISABLE_TELEMETRY=true`;
+                telemetryArg = `ORYX_DISABLE_TELEMETRY=true`;
             }
-            await new Utility().executeAndthrowIfError(`${PACK_CMD}`, ['build', `${imageToDeploy}`, '--path', `${appSourcePath}`, '--builder', `${ORYX_BUILDER_IMAGE}`, '--run-image', `mcr.microsoft.com/oryx/${runtimeStack}`, '--env', `ORYX_DISABLE_TELEMETRY=true`]);
+            await new Utility().executeAndthrowIfError(`${PACK_CMD}`, ['build', `${imageToDeploy}`, '--path', `${appSourcePath}`, '--builder', `${ORYX_BUILDER_IMAGE}`, '--run-image', `mcr.microsoft.com/oryx/${runtimeStack}`, '--env', `${telemetryArg}`]);
         } catch (err) {
             core.error(err.message);
             throw err;