Testing artifact error

lab6/Jenkinsfile_test

@@ -0,0 +1,45 @@
+pipeline {
+    agent {
+        dockerfile true
+        }
+    parameters {
+        string(
+			defaultValue: '100',
+			description: 'Example training parameter',
+			name: 'EPOCHS_NUM'
+		)
+    }
+    stages {
+        stage('Stage 1') {
+            steps {
+				    sh 'chmod u+x ./simple_regression.py'
+					echo 'Copying datasets from create-dataset...'
+					copyArtifacts filter: '*', projectName: 's449288-create-dataset'
+					echo 'Datasets copied'
+					echo 'Conducting simple regression model test'
+					sh 'python3 simple_regression.py $EPOCHS_NUM'
+					echo 'Model and predictions saved'
+                    sh 'head lego_reg_results.csv'
+					sh 'ls -lh lego_reg_model'
+                    echo 'Archiving model...'
+                    sh 'tar -czf lego_reg_model.tar.gz lego_reg_model/'
+                    archiveArtifacts 'lego_reg_model.tar.gz'
+                    echo 'Model archived'
+				}
+            }
+        }
+    post {
+        success {
+            emailext body: 'SUCCESS', subject: 's449288-training build status', to: 'e19191c5.uam.onmicrosoft.com@emea.teams.ms'
+        }
+        failure {
+            emailext body: 'FAILURE', subject: 's449288-training build status', to: 'e19191c5.uam.onmicrosoft.com@emea.teams.ms'
+        }
+        unstable {
+            emailext body: 'UNSTABLE', subject: 's449288-training build status', to: 'e19191c5.uam.onmicrosoft.com@emea.teams.ms'
+        }
+        changed {
+            emailext body: 'CHANGED', subject: 's449288-training build status', to: 'e19191c5.uam.onmicrosoft.com@emea.teams.ms'
+        }		
+    }
+}