diff --git a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/custom/ColonSpaceValidator.java b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/custom/ColonSpaceValidator.java
new file mode 100644
index 0000000..68a8013
--- /dev/null
+++ b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/custom/ColonSpaceValidator.java
@@ -0,0 +1,25 @@
+package org.gcube.portlets.user.statisticalalgorithmsimporter.client.custom;
+
+import java.util.List;
+
+import com.google.gwt.editor.client.Editor;
+import com.google.gwt.editor.client.EditorError;
+import com.sencha.gxt.widget.core.client.form.validator.AbstractValidator;
+
+/**
+ * 
+ * @author Giancarlo Panichi 
+ *
+ *
+ */
+public class ColonSpaceValidator extends AbstractValidator<String> {
+
+	@Override
+	public List<EditorError> validate(Editor<String> editor, String value) {
+		if (value != null && !value.isEmpty() && value.contains(": ")) {
+			return createError(editor, "Invalid sequence of characters=': '", value);
+		}
+		return null;
+	}
+
+}
diff --git a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/InputVariableTabPanel.java b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/InputVariableTabPanel.java
index ccf8c79..9b1da13 100644
--- a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/InputVariableTabPanel.java
+++ b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/InputVariableTabPanel.java
@@ -77,10 +77,10 @@ public class InputVariableTabPanel extends TabPanel {
 	//
 	public void setMainCode(Project project) {
 		try {
-			globalVariablesPanel.update(project);
-			inputOutputVariablesPanel.update(project);
 			projectInfoPanel.update(project);
+			inputOutputVariablesPanel.update(project);
 			interpreterInfoPanel.update(project);
+			globalVariablesPanel.update(project);
 			forceLayout();
 		} catch (Throwable e) {
 			Log.error("Error in InputVariableTabPanel: " + e.getLocalizedMessage());
@@ -91,10 +91,10 @@ public class InputVariableTabPanel extends TabPanel {
 
 	public void setBinaryCode(Project project) {
 		try {
-			globalVariablesPanel.update(project);
-			inputOutputVariablesPanel.update(project);
 			projectInfoPanel.update(project);
+			inputOutputVariablesPanel.update(project);
 			interpreterInfoPanel.update(project);
+			globalVariablesPanel.update(project);
 			forceLayout();
 		} catch (Throwable e) {
 			Log.error("Error in InputVariableTabPanel: " + e.getLocalizedMessage());
@@ -105,10 +105,10 @@ public class InputVariableTabPanel extends TabPanel {
 
 	public void updateTabs(Project project) {
 		try {
-			globalVariablesPanel.update(project);
+			projectInfoPanel.update(project);
 			inputOutputVariablesPanel.update(project);
 			interpreterInfoPanel.update(project);
-			projectInfoPanel.update(project);
+			globalVariablesPanel.update(project);
 			forceLayout();
 		} catch (Throwable e) {
 			Log.error("Error in InputVariableTabPanel: " + e.getLocalizedMessage());
@@ -120,29 +120,30 @@ public class InputVariableTabPanel extends TabPanel {
 
 		InputData inputData = new InputData();
 
-		if (globalVariablesPanel != null) {
-			inputData.setListGlobalVariables(globalVariablesPanel.getGlobalVariables());
-		}
-
-		if (inputOutputVariablesPanel != null) {
-			inputData.setListInputOutputVariables(inputOutputVariablesPanel.getInputOutputVariables());
-		}
-
-		if (interpreterInfoPanel != null) {
-			inputData.setInterpreterInfo(interpreterInfoPanel.getInterpreterInfo());
-		}
-
 		InputReadyEvent inputReadyEvent;
+
 		try {
 			if (projectInfoPanel != null) {
 				ProjectInfo projectInfo = projectInfoPanel.getProjectInfo();
 				inputData.setProjectInfo(projectInfo);
-				inputReadyEvent = new InputReadyEvent(inputData);
-			} else {
-				inputReadyEvent = new InputReadyEvent(inputData, "Error loading ProjectInfoPanel!");
 			}
-		} catch (Exception e) {
-			Log.error("Attention invalid project info: " + e.getLocalizedMessage());
+
+			if (inputOutputVariablesPanel != null) {
+				inputData.setListInputOutputVariables(inputOutputVariablesPanel.getInputOutputVariables());
+			}
+
+			if (interpreterInfoPanel != null) {
+				inputData.setInterpreterInfo(interpreterInfoPanel.getInterpreterInfo());
+			}
+
+			if (globalVariablesPanel != null) {
+				inputData.setListGlobalVariables(globalVariablesPanel.getGlobalVariables());
+			}
+
+			inputReadyEvent = new InputReadyEvent(inputData);
+
+		} catch (Throwable e) {
+			Log.error("Attention invalid info: " + e.getLocalizedMessage());
 			inputReadyEvent = new InputReadyEvent(inputData, e.getLocalizedMessage());
 		}
 
@@ -152,6 +153,15 @@ public class InputVariableTabPanel extends TabPanel {
 	}
 
 	// Add
+	private void addProjectInfoPanel(Project project) {
+		TabItemConfig projectInfoPanelItemConf = new TabItemConfig(msgs.projectInfo(), false);
+
+		projectInfoPanel = new ProjectInfoPanel(project, eventBus);
+		projectInfoPanel.setHeaderVisible(false);
+		add(projectInfoPanel, projectInfoPanelItemConf);
+
+	}
+
 	private void addInputOutputVariablesPanel(Project project) {
 		TabItemConfig inputOutputPanelItemConf = new TabItemConfig(msgs.inputOutputVariables(), false);
 
@@ -178,15 +188,6 @@ public class InputVariableTabPanel extends TabPanel {
 
 	}
 
-	private void addProjectInfoPanel(Project project) {
-		TabItemConfig projectInfoPanelItemConf = new TabItemConfig(msgs.projectInfo(), false);
-
-		projectInfoPanel = new ProjectInfoPanel(project, eventBus);
-		projectInfoPanel.setHeaderVisible(false);
-		add(projectInfoPanel, projectInfoPanelItemConf);
-
-	}
-
 	public void addSelectedRowsVariable(InputOutputVariables inputOutputVariable) {
 		setActiveWidget(inputOutputVariablesPanel);
 		inputOutputVariablesPanel.addNewInputOutputVariables(inputOutputVariable);
diff --git a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/ProjectInfoPanel.java b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/ProjectInfoPanel.java
index c063939..cdd95de 100644
--- a/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/ProjectInfoPanel.java
+++ b/src/main/java/org/gcube/portlets/user/statisticalalgorithmsimporter/client/tools/input/ProjectInfoPanel.java
@@ -1,5 +1,6 @@
 package org.gcube.portlets.user.statisticalalgorithmsimporter.client.tools.input;
 
+import org.gcube.portlets.user.statisticalalgorithmsimporter.client.custom.ColonSpaceValidator;
 import org.gcube.portlets.user.statisticalalgorithmsimporter.shared.input.ProjectInfo;
 import org.gcube.portlets.user.statisticalalgorithmsimporter.shared.project.Project;
 
@@ -73,9 +74,11 @@ public class ProjectInfoPanel extends ContentPanel {
 		algorithmDescription = new TextField();
 		algorithmDescription.setAllowBlank(false);
 		algorithmDescription.setEmptyText("Enter description...");
+		algorithmDescription.addValidator(new ColonSpaceValidator());
 		algorithmDescription.addValidator(new RegExValidator("^[^\"]*$", "Attention character \" is not allowed"));
 		algorithmDescription.addValidator(new RegExValidator("^[^|]*$", "Attention character | is not allowed"));
-
+		algorithmDescription.addValidator(new RegExValidator("^[a-zA-Z0-9_\\-\\s\\t\\.,;:\\(\\)\\[\\]\\{\\}/~]*$", "Attention the special characters are not allowed"));
+		
 		FieldLabel descriptionLabel = new FieldLabel(algorithmDescription, "Description");
 		descriptionLabel.setLabelWidth(LABAEL_WIDTH);