pdf-parse.d.ts not found when using PDFLoader

[RitvikShandilya]

System Info

{ "name": "server-chatgpt", "version": "1.0.0", "description": "", "type": "module", "main": "dist/app.js", "scripts": { "start": "tsc & node dist/app.js", "dev": "tsc -w & nodemon -x 'node dist/app.js || touch dist/app.js'", "dev2": "tsc -w & pm2 start dist/app.js --watch", "log": "pm2 log", "stop": "pm2 stop app", "lint": "eslint . --ext .ts", "test": "echo \"Error: no test specified\" && exit 1" }, "author": "", "license": "ISC", "devDependencies": { "@types/cors": "^2.8.13", "@types/express": "^4.17.17", "@typescript-eslint/eslint-plugin": "^5.59.6", "@typescript-eslint/parser": "^5.59.6", "eslint": "^8.41.0", "nodemon": "^2.0.22", "pm2": "^5.3.0", "ts-node": "^10.9.1", "typescript": "^5.0.4" }, "dependencies": { "@types/node": "^20.3.1", "@types/pdf-parse": "^1.1.1", "body-parser": "^1.20.2", "chatgpt": "^5.2.4", "chromadb": "^1.5.2", "cors": "^2.8.5", "dotenv": "^16.0.3", "express": "^4.18.2", "hnswlib-node": "^1.4.2", "langchain": "^0.0.95", "openai": "^3.2.1", "pdfjs-dist": "^3.7.107", "pg": "^8.11.0", "typeorm": "^0.3.16", "uuid": "^9.0.0" } }

Who can help?

@eyurtsev @agola11

Information

• [X] The official example notebooks/scripts
• [ ] My own modified scripts

Related Components

• [ ] LLMs/Chat Models
• [ ] Embedding Models
• [ ] Prompts / Prompt Templates / Prompt Selectors
• [ ] Output Parsers
• [X] Document Loaders
• [ ] Vector Stores / Retrievers
• [ ] Memory
• [ ] Agents / Agent Executors
• [ ] Tools / Toolkits
• [ ] Chains
• [ ] Callbacks/Tracing
• [ ] Async

Reproduction

When "npm run dev" is executed, I get an error saying node_modules/langchain/dist/document_loaders/fs/pdf.d.ts:1:22 - error TS6053: /node_modules/langchain/src/types/pdf-parse.d.ts' not found.

///

This error comes when I try to import { PDFLoader } from "langchain/document_loaders/fs/pdf";

tsconfig: { "compilerOptions": { "module": "NodeNext", "esModuleInterop": true, "target": "es6", "moduleResolution": "nodenext", "sourceMap": true, "outDir": "dist", "resolveJsonModule": true, "allowJs": true }, "lib": ["es2015"] }

Expected behavior

no error is expected as pdf-parse is already installed, similar issue with pdfjs-dist

[kdcokenny]

This repo is for python. This is the js/ts library -> https://github.com/hwchase17/langchainjs

[glenchao]

"skipLibCheck": true in tsconfig should get you unblocked

[dosubot[bot]]

Hi, @RitvikShandilya! I'm Dosu, and I'm helping the LangChain team manage their backlog. I wanted to let you know that we are marking this issue as stale.

From what I understand, you reported that the pdf-parse.d.ts file is not found when using the PDFLoader in the langchain package. kdcokenny pointed out that this repository is for Python, and suggested using the JavaScript/TypeScript library instead. glenchao also suggested adding "skipLibCheck": true to the tsconfig file to resolve the issue.

Before we close this issue, we wanted to check if it is still relevant to the latest version of the LangChain repository. If it is, please let us know by commenting on the issue. Otherwise, feel free to close the issue yourself or it will be automatically closed in 7 days.

Thank you for your understanding and contribution to the LangChain project!