diff --git a/packages/generator-typescript/src/type-definition-generator.ts b/packages/generator-typescript/src/type-definition-generator.ts
index 2e597473a..347183a95 100644
--- a/packages/generator-typescript/src/type-definition-generator.ts
+++ b/packages/generator-typescript/src/type-definition-generator.ts
@@ -684,6 +684,11 @@ class ModuleGenerator extends FormatGenerator<string[]> {
             }
         }
 
+        // TODO: Check if this is necessary anywhere else...
+        if (isInvalid(name) && !isGlobal) {
+            name = `["${name}"]`
+        }
+
         const inParamsDef: string[] = this.generateInParameters(inParams)
 
         def.push(
@@ -692,7 +697,7 @@ class ModuleGenerator extends FormatGenerator<string[]> {
             )})${retSep} ${returnType}`,
         )
 
-        // Add overloaded methods
+        // TODO: Add overloaded methods
         // if (overloads && tsFunction.overloads.length > 0) {
         //     def.push(...this.addInfoComment(`Overloads of ${name}`, indentCount))
         //     for (const func of tsFunction.overloads) {
diff --git a/packages/lib/src/gir-module.ts b/packages/lib/src/gir-module.ts
index 29d0c49af..2c6edb637 100644
--- a/packages/lib/src/gir-module.ts
+++ b/packages/lib/src/gir-module.ts
@@ -1377,7 +1377,6 @@ export class GirModule {
                 ?.filter(isIntrospectable)
                 // Avoid attempting to alias non-introspectable symbols.
                 .map((b) => {
-                    console.debug('b', b)
                     b.type = b.type
                         ?.filter((t): t is NamedType => !!(t && t.$.name))
                         .map((t) => {
diff --git a/packages/lib/src/gir.ts b/packages/lib/src/gir.ts
index b1c0ef116..3ebe3d12c 100644
--- a/packages/lib/src/gir.ts
+++ b/packages/lib/src/gir.ts
@@ -3,6 +3,8 @@ import { IntrospectedProperty, IntrospectedField } from './gir/property.js'
 import { GenerationOptions } from './types.js'
 import { sanitizeIdentifierName } from './gir/util.js'
 
+export { sanitizeMemberName, isInvalid } from './gir/util.js'
+
 export {
     IntrospectedBase,
     Options as IntrospectedOptions,
@@ -57,6 +59,14 @@ export class TypeIdentifier extends TypeExpression {
         return type
     }
 
+    /**
+     * TODO: gi.ts didn't deal with sanitizing types but probably should have to avoid
+     * invalid names such as "3gppProfile"
+     */
+    sanitize() {
+        return new TypeIdentifier(sanitizeIdentifierName(this.namespace, this.name), this.namespace)
+    }
+
     protected _resolve(namespace: IntrospectedNamespace, options: GenerationOptions): TypeIdentifier | null {
         const name: string = sanitizeIdentifierName(null, this.name)
         const ns_name = this.namespace
diff --git a/packages/lib/src/gir/util.ts b/packages/lib/src/gir/util.ts
index 04bcb0dee..b8d831051 100644
--- a/packages/lib/src/gir/util.ts
+++ b/packages/lib/src/gir/util.ts
@@ -249,7 +249,9 @@ export function getType(
 
     if (variableType instanceof TypeIdentifier) {
         if (variableType.is("GLib", "List") || variableType.is("GLib", "SList")) {
-            const listType = parameter?.type?.[0].type?.[0]?.$.name;
+            // TODO: $?.name was not necessary in gi.ts, but TelepathyLogger
+            // fails to generate now.
+            const listType = parameter?.type?.[0].type?.[0]?.$?.name;
 
             if (listType) {
                 name = listType;
@@ -412,14 +414,14 @@ export function parseTypeExpression(modName: string, type: string): TypeExpressi
     const baseType = parseTypeString(type);
 
     if (baseType.namespace) {
-        return new TypeIdentifier(baseType.name, baseType.namespace);
+        return new TypeIdentifier(baseType.name, baseType.namespace).sanitize();
     } else {
         const primitiveType = resolvePrimitiveType(baseType.name);
 
         if (primitiveType !== null) {
             return primitiveType;
         } else {
-            return new TypeIdentifier(baseType.name, modName);
+            return new TypeIdentifier(baseType.name, modName).sanitize();
         }
     }
 }
diff --git a/packages/lib/src/validators/class.ts b/packages/lib/src/validators/class.ts
index 9c735c318..6f7b49eb4 100644
--- a/packages/lib/src/validators/class.ts
+++ b/packages/lib/src/validators/class.ts
@@ -1,4 +1,4 @@
-import { NativeType, TypeIdentifier } from "../gir.js";
+import { AnyType, NativeType, TypeIdentifier } from "../gir.js";
 import { IntrospectedBaseClass, IntrospectedClass, IntrospectedInterface, IntrospectedRecord } from "../gir/class.js";
 import { IntrospectedError } from "../gir/enum.js";
 import {
@@ -139,6 +139,35 @@ const removeComplexFields = <T extends IntrospectedBaseClass>(node: T): T => {
     return node;
 };
 
+/**
+ * TODO: Consider making this transformation optional.
+ *
+ * If we are referencing an unknown library, any-ify the type.
+ *
+ * @param node
+ */
+const removeReferencesToMissingLibraries = <T extends IntrospectedBaseClass>(node: T): T => {
+    const { namespace } = node;
+
+    node.fields = node.fields.map(f => {
+        const type = f.type.deepUnwrap();
+
+        if (type instanceof TypeIdentifier) {
+            // Find the type for the identifier
+            const nsNode = namespace.getInstalledImport(type.namespace);
+
+            // Don't allow private or disguised fields
+            if (!nsNode) {
+                return f.copy({ type: AnyType });
+            }
+        }
+
+        return f;
+    });
+
+    return node;
+};
+
 const removePrivateFields = <T extends IntrospectedBaseClass>(node: T): T => {
     node.fields = node.fields.filter(f => {
         return !f.isPrivate && !f.name.startsWith("_");
@@ -232,6 +261,7 @@ export class ClassVisitor extends GirVisitor {
     visitClass = (node: IntrospectedClass) =>
         chainVisitors(
             node,
+            removeReferencesToMissingLibraries,
             fixMissingParent,
             fixParamSpecSubtypes,
             removeComplexFields,
diff --git a/ts-for-gir.code-workspace b/ts-for-gir.code-workspace
new file mode 100644
index 000000000..a223454db
--- /dev/null
+++ b/ts-for-gir.code-workspace
@@ -0,0 +1,38 @@
+{
+    "folders": [
+        {
+            "path": ".",
+        },
+        {
+            "path": "packages/parser",
+        },
+        {
+            "path": "packages/lib",
+        },
+        {
+            "path": "packages/cli",
+        },
+        {
+            "path": "packages/generator-base",
+        },
+        {
+            "path": "packages/generator-typescript",
+        },
+        {
+            "path": "packages/generator-html-doc",
+        },
+    ],
+    "settings": {
+        "typescript.enablePromptUseWorkspaceTsdk": true,
+        "typescript.tsdk": ".yarn/sdks/typescript/lib",
+        "files.exclude": {
+            "**/.git": true,
+            "**/.svn": true,
+            "**/.hg": true,
+            "**/CVS": true,
+            "**/.DS_Store": true,
+            "**/Thumbs.db": true,
+            "packages/**": true,
+        },
+    },
+}