Cannot use tag browse when creating new expression tag 7.5.7

We get this error when trying to use the tag browser when creating a new expression tag

java.lang.OutOfMemoryError: Java heap space
	at java.util.Arrays.copyOf(Unknown Source)
	at java.io.ByteArrayOutputStream.write(Unknown Source)
	at com.inductiveautomation.ignition.common.Base64.decode(Base64.java:930)
	at com.inductiveautomation.ignition.common.Base64.decodeToObjectFragile(Base64.java:1017)
	at com.inductiveautomation.ignition.client.gateway_interface.ResponseParser.endElement(ResponseParser.java:152)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.endElement(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanEndElement(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(Unknown Source)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(Unknown Source)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(Unknown Source)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.getResponse(GatewayInterface.java:414)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:249)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.sendMessage(GatewayInterface.java:244)
	at com.inductiveautomation.ignition.client.gateway_interface.GatewayInterface.invoke(GatewayInterface.java:797)
	at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:488)
	at com.inductiveautomation.ignition.client.sqltags.impl.db.DatasourceTagManager.browse(DatasourceTagManager.java:473)
	at com.inductiveautomation.ignition.client.sqltags.impl.ClientTagManagerImpl.browse(ClientTagManagerImpl.java:277)
	at com.inductiveautomation.ignition.designer.sqltags.tree.TagTreeNode.loadChildren(TagTreeNode.java:227)
	at com.inductiveautomation.ignition.designer.sqltags.tree.TagTreeNode.checkChildren(TagTreeNode.java:175)
	at com.inductiveautomation.ignition.designer.sqltags.tree.AbstractTagPathTreeNode.getChildCount(AbstractTagPathTreeNode.java:252)
	at com.inductiveautomation.ignition.designer.sqltags.tree.TagTreeNode.getChildCount(TagTreeNode.java:219)
	at javax.swing.tree.DefaultTreeModel.getChildCount(Unknown Source)
	at com.jidesoft.swing.TreeSearchable.populateTreePaths0(Unknown Source)
	at com.jidesoft.swing.TreeSearchable.populateTreePaths0(Unknown Source)
	at com.jidesoft.swing.TreeSearchable.populateTreePaths0(Unknown Source)
	at com.jidesoft.swing.TreeSearchable.populateTreePaths0(Unknown Source)
	at com.jidesoft.swing.TreeSearchable.populateTreePaths(Unknown Source)

Ignition v7.5.7 (b1387)
Java: Sun Microsystems Inc. 1.6.0_45

Are you running out of memory in the designer when you browse? That is what the message about “Java Heap Space” is indicating.