diff --git a/packages/core/schematics/migrations/injectable-pipe/index.ts b/packages/core/schematics/migrations/injectable-pipe/index.ts
index f1b2b96040..5c4615bd90 100644
--- a/packages/core/schematics/migrations/injectable-pipe/index.ts
+++ b/packages/core/schematics/migrations/injectable-pipe/index.ts
@@ -53,10 +53,11 @@ function runInjectablePipeMigration(tree: Tree, tsconfigPath: string, basePath:
   const program = ts.createProgram(parsed.fileNames, parsed.options, host);
   const typeChecker = program.getTypeChecker();
   const visitor = new InjectablePipeVisitor(typeChecker);
-  const rootSourceFiles = program.getRootFileNames().map(f => program.getSourceFile(f) !);
+  const sourceFiles = program.getSourceFiles().filter(
+      f => !f.isDeclarationFile && !program.isSourceFileFromExternalLibrary(f));
   const printer = ts.createPrinter();
 
-  rootSourceFiles.forEach(sourceFile => visitor.visitNode(sourceFile));
+  sourceFiles.forEach(sourceFile => visitor.visitNode(sourceFile));
 
   visitor.missingInjectablePipes.forEach(data => {
     const {classDeclaration, importDeclarationMissingImport} = data;
diff --git a/packages/core/schematics/migrations/move-document/index.ts b/packages/core/schematics/migrations/move-document/index.ts
index 10e5efd046..ffb2a59079 100644
--- a/packages/core/schematics/migrations/move-document/index.ts
+++ b/packages/core/schematics/migrations/move-document/index.ts
@@ -54,10 +54,11 @@ function runMoveDocumentMigration(tree: Tree, tsconfigPath: string, basePath: st
   const program = ts.createProgram(parsed.fileNames, parsed.options, host);
   const typeChecker = program.getTypeChecker();
   const visitor = new DocumentImportVisitor(typeChecker);
-  const rootSourceFiles = program.getRootFileNames().map(f => program.getSourceFile(f) !);
+  const sourceFiles = program.getSourceFiles().filter(
+      f => !f.isDeclarationFile && !program.isSourceFileFromExternalLibrary(f));
 
   // Analyze source files by finding imports.
-  rootSourceFiles.forEach(sourceFile => visitor.visitNode(sourceFile));
+  sourceFiles.forEach(sourceFile => visitor.visitNode(sourceFile));
 
   const {importsMap} = visitor;
 
diff --git a/packages/core/schematics/migrations/static-queries/index.ts b/packages/core/schematics/migrations/static-queries/index.ts
index f592e56e7c..6ea16c484e 100644
--- a/packages/core/schematics/migrations/static-queries/index.ts
+++ b/packages/core/schematics/migrations/static-queries/index.ts
@@ -117,7 +117,8 @@ function analyzeProject(tree: Tree, tsconfigPath: string, basePath: string):
 
       const program = ts.createProgram(parsed.fileNames, parsed.options, host);
       const typeChecker = program.getTypeChecker();
-      const sourceFiles = program.getRootFileNames().map(f => program.getSourceFile(f) !);
+      const sourceFiles = program.getSourceFiles().filter(
+          f => !f.isDeclarationFile && !program.isSourceFileFromExternalLibrary(f));
       const queryVisitor = new NgQueryResolveVisitor(typeChecker);
 
       // Analyze all project source-files and collect all queries that
diff --git a/packages/core/schematics/migrations/template-var-assignment/index.ts b/packages/core/schematics/migrations/template-var-assignment/index.ts
index ed27c1f93d..16cbf4b056 100644
--- a/packages/core/schematics/migrations/template-var-assignment/index.ts
+++ b/packages/core/schematics/migrations/template-var-assignment/index.ts
@@ -60,10 +60,11 @@ function runTemplateVariableAssignmentCheck(
   const program = ts.createProgram(parsed.fileNames, parsed.options, host);
   const typeChecker = program.getTypeChecker();
   const templateVisitor = new NgComponentTemplateVisitor(typeChecker);
-  const rootSourceFiles = program.getRootFileNames().map(f => program.getSourceFile(f) !);
+  const sourceFiles = program.getSourceFiles().filter(
+      f => !f.isDeclarationFile && !program.isSourceFileFromExternalLibrary(f));
 
   // Analyze source files by detecting HTML templates.
-  rootSourceFiles.forEach(sourceFile => templateVisitor.visitNode(sourceFile));
+  sourceFiles.forEach(sourceFile => templateVisitor.visitNode(sourceFile));
 
   const {resolvedTemplates} = templateVisitor;
   const collectedFailures: string[] = [];