From 66e2c6d60270dd3b547de1ac2ef6f562ad752070 Mon Sep 17 00:00:00 2001
From: Nathan Walker <walkerrunpdx@gmail.com>
Date: Tue, 6 Jan 2026 12:25:34 -0800
Subject: [PATCH] fix(workspaces): duplicate added frameworks

---
 lib/services/ios-project-service.ts | 39 ++++++++++++++++++++++++++++-
 1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/lib/services/ios-project-service.ts b/lib/services/ios-project-service.ts
index ce078642f3..bfd37bf216 100644
--- a/lib/services/ios-project-service.ts
+++ b/lib/services/ios-project-service.ts
@@ -545,6 +545,18 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 		}
 	}
 
+	// Track added frameworks by name to prevent duplicates in monorepo/workspace setups
+	// where the same plugin may exist in multiple node_modules paths
+	private _addedFrameworks: Set<string> = new Set();
+
+	/**
+	 * Clears the framework and static library tracking sets. Should be called at the start of a new prepare cycle.
+	 */
+	public clearFrameworksCache(): void {
+		this._addedFrameworks.clear();
+		this._addedStaticLibs.clear();
+	}
+
 	private async addFramework(
 		frameworkPath: string,
 		projectData: IProjectData,
@@ -553,6 +565,16 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 			return;
 		}
 
+		// Check if framework with same name already added (prevents duplicate output errors in monorepos)
+		const frameworkName = path.basename(frameworkPath);
+		if (this._addedFrameworks.has(frameworkName)) {
+			this.$logger.trace(
+				`Framework ${frameworkName} already added, skipping duplicate from ${frameworkPath}`,
+			);
+			return;
+		}
+		this._addedFrameworks.add(frameworkName);
+
 		this.validateFramework(frameworkPath);
 
 		const project = this.createPbxProj(projectData);
@@ -592,12 +614,24 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 		this.savePbxProj(project, projectData);
 	}
 
+	// Track added static libraries by name to prevent duplicates in monorepo/workspace setups
+	private _addedStaticLibs: Set<string> = new Set();
+
 	private async addStaticLibrary(
 		staticLibPath: string,
 		projectData: IProjectData,
 	): Promise<void> {
-		// Copy files to lib folder.
+		// Check if static library with same name already added (prevents duplicate errors in monorepos)
 		const libraryName = path.basename(staticLibPath, ".a");
+		if (this._addedStaticLibs.has(libraryName)) {
+			this.$logger.trace(
+				`Static library ${libraryName} already added, skipping duplicate from ${staticLibPath}`,
+			);
+			return;
+		}
+		this._addedStaticLibs.add(libraryName);
+
+		// Copy files to lib folder.
 		const headersSubpath = path.join(
 			path.dirname(staticLibPath),
 			"include",
@@ -1157,6 +1191,9 @@ export class IOSProjectService extends projectServiceBaseLib.PlatformProjectServ
 		projectData: IProjectData,
 		opts: IRelease,
 	): Promise<void> {
+		// Clear framework tracking for fresh duplicate detection
+		this.clearFrameworksCache();
+
 		const platformData = this.getPlatformData(projectData);
 		const pluginsData = this.getAllProductionPlugins(projectData);
 		this.setProductBundleIdentifier(projectData);