diff --git a/extensions/sql-database-projects/src/models/project.ts b/extensions/sql-database-projects/src/models/project.ts
index 4f2d4fb518..1a92e59405 100644
--- a/extensions/sql-database-projects/src/models/project.ts
+++ b/extensions/sql-database-projects/src/models/project.ts
@@ -588,36 +588,36 @@ export class Project {
 		}
 	}
 
-	private addSystemDatabaseReferenceToProjFile(entry: SystemDatabaseReferenceProjectEntry): void {
+	private async addSystemDatabaseReferenceToProjFile(entry: SystemDatabaseReferenceProjectEntry): Promise<void> {
 		const systemDbReferenceNode = this.projFileXmlDoc.createElement(constants.ArtifactReference);
 
 		// if it's a system database reference, we'll add an additional node with the SSDT location of the dacpac later
 		systemDbReferenceNode.setAttribute(constants.Condition, constants.NetCoreCondition);
 		systemDbReferenceNode.setAttribute(constants.Include, entry.pathForSqlProj());
-		this.addDatabaseReferenceChildren(systemDbReferenceNode, entry);
+		await this.addDatabaseReferenceChildren(systemDbReferenceNode, entry);
 		this.findOrCreateItemGroup(constants.ArtifactReference).appendChild(systemDbReferenceNode);
 
 		// add a reference to the system dacpac in SSDT if it's a system db
 		const ssdtReferenceNode = this.projFileXmlDoc.createElement(constants.ArtifactReference);
 		ssdtReferenceNode.setAttribute(constants.Condition, constants.NotNetCoreCondition);
 		ssdtReferenceNode.setAttribute(constants.Include, entry.ssdtPathForSqlProj());
-		this.addDatabaseReferenceChildren(ssdtReferenceNode, entry);
+		await this.addDatabaseReferenceChildren(ssdtReferenceNode, entry);
 		this.findOrCreateItemGroup(constants.ArtifactReference).appendChild(ssdtReferenceNode);
 	}
 
-	private addDatabaseReferenceToProjFile(entry: IDatabaseReferenceProjectEntry): void {
+	private async addDatabaseReferenceToProjFile(entry: IDatabaseReferenceProjectEntry): Promise<void> {
 		if (entry instanceof SystemDatabaseReferenceProjectEntry) {
-			this.addSystemDatabaseReferenceToProjFile(<SystemDatabaseReferenceProjectEntry>entry);
+			await this.addSystemDatabaseReferenceToProjFile(<SystemDatabaseReferenceProjectEntry>entry);
 		} else if (entry instanceof SqlProjectReferenceProjectEntry) {
 			const referenceNode = this.projFileXmlDoc.createElement(constants.ProjectReference);
 			referenceNode.setAttribute(constants.Include, entry.pathForSqlProj());
 			this.addProjectReferenceChildren(referenceNode, <SqlProjectReferenceProjectEntry>entry);
-			this.addDatabaseReferenceChildren(referenceNode, entry);
+			await this.addDatabaseReferenceChildren(referenceNode, entry);
 			this.findOrCreateItemGroup(constants.ProjectReference).appendChild(referenceNode);
 		} else {
 			const referenceNode = this.projFileXmlDoc.createElement(constants.ArtifactReference);
 			referenceNode.setAttribute(constants.Include, entry.pathForSqlProj());
-			this.addDatabaseReferenceChildren(referenceNode, entry);
+			await this.addDatabaseReferenceChildren(referenceNode, entry);
 			this.findOrCreateItemGroup(constants.ArtifactReference).appendChild(referenceNode);
 		}
 
@@ -631,7 +631,7 @@ export class Project {
 		return found;
 	}
 
-	private addDatabaseReferenceChildren(referenceNode: any, entry: IDatabaseReferenceProjectEntry): void {
+	private async addDatabaseReferenceChildren(referenceNode: any, entry: IDatabaseReferenceProjectEntry): Promise<void> {
 		const suppressMissingDependenciesErrorNode = this.projFileXmlDoc.createElement(constants.SuppressMissingDependenciesErrors);
 		const suppressMissingDependenciesErrorTextNode = this.projFileXmlDoc.createTextNode(entry.suppressMissingDependenciesErrors ? constants.True : constants.False);
 		suppressMissingDependenciesErrorNode.appendChild(suppressMissingDependenciesErrorTextNode);
@@ -644,7 +644,7 @@ export class Project {
 			referenceNode.appendChild(databaseSqlCmdVariableElement);
 
 			// add SQLCMD variable
-			this.addSqlCmdVariable((<DacpacReferenceProjectEntry>entry).databaseSqlCmdVariable!, (<DacpacReferenceProjectEntry>entry).databaseVariableLiteralValue!);
+			await this.addSqlCmdVariable((<DacpacReferenceProjectEntry>entry).databaseSqlCmdVariable!, (<DacpacReferenceProjectEntry>entry).databaseVariableLiteralValue!);
 		} else if (entry.databaseVariableLiteralValue) {
 			const databaseVariableLiteralValueElement = this.projFileXmlDoc.createElement(constants.DatabaseVariableLiteralValue);
 			const databaseTextNode = this.projFileXmlDoc.createTextNode(entry.databaseVariableLiteralValue);
@@ -659,7 +659,7 @@ export class Project {
 			referenceNode.appendChild(serverSqlCmdVariableElement);
 
 			// add SQLCMD variable
-			this.addSqlCmdVariable((<DacpacReferenceProjectEntry>entry).serverSqlCmdVariable!, (<DacpacReferenceProjectEntry>entry).serverName!);
+			await this.addSqlCmdVariable((<DacpacReferenceProjectEntry>entry).serverSqlCmdVariable!, (<DacpacReferenceProjectEntry>entry).serverName!);
 		}
 	}
 
@@ -809,7 +809,7 @@ export class Project {
 		}
 	}
 
-	private async addToProjFile(entry: ProjectEntry, xmlTag?: string) {
+	private async addToProjFile(entry: ProjectEntry, xmlTag?: string): Promise<void> {
 		switch (entry.type) {
 			case EntryType.File:
 				this.addFileToProjFile((<FileProjectEntry>entry).relativePath, xmlTag ? xmlTag : constants.Build);
@@ -818,7 +818,7 @@ export class Project {
 				this.addFolderToProjFile((<FileProjectEntry>entry).relativePath);
 				break;
 			case EntryType.DatabaseReference:
-				this.addDatabaseReferenceToProjFile(<IDatabaseReferenceProjectEntry>entry);
+				await this.addDatabaseReferenceToProjFile(<IDatabaseReferenceProjectEntry>entry);
 				break;
 			case EntryType.SqlCmdVariable:
 				this.addSqlCmdVariableToProjFile(<SqlCmdVariableProjectEntry>entry);
diff --git a/extensions/sql-database-projects/src/test/projectController.test.ts b/extensions/sql-database-projects/src/test/projectController.test.ts
index abd47a297c..bc08dc3bfb 100644
--- a/extensions/sql-database-projects/src/test/projectController.test.ts
+++ b/extensions/sql-database-projects/src/test/projectController.test.ts
@@ -243,14 +243,14 @@ describe('ProjectsController', function (): void {
 				sinon.stub(vscode.window, 'showWarningMessage').returns(<any>Promise.resolve(constants.yesString));
 
 				// add dacpac reference
-				proj.addDatabaseReference({
+				await proj.addDatabaseReference({
 					dacpacFileLocation: vscode.Uri.file('test2.dacpac'),
 					databaseName: 'test2DbName',
 					databaseVariable: 'test2Db',
 					suppressMissingDependenciesErrors: false
 				});
 				// add project reference
-				proj.addProjectReference({
+				await proj.addProjectReference({
 					projectName: 'project1',
 					projectGuid: '',
 					projectRelativePath: vscode.Uri.file(path.join('..', 'project1', 'project1.sqlproj')),