Error code 239 Error code 243 Error code 255 Error code 257 Error code 308 Error code 310 Error code 311 Error code 313 Error code 315 Error code 316 Error code 317 Error code 320 Error code 322 Error code 323 Error code 402 Error code 405 Error code 406 Error code 415 Error code 464 Error code 498 Error code RQ108 Error code RQ277 Error code RQ278 Error code RQ291 Error code RQ295 How to fix warnings and errors in your tax return Revenu Québec - NETFILE Errors Warning message: Principal residence Warning – LLP (Lifelong Learning Plan) repayment Warning: Box 83 of T4 needs to be entered on T2125