300 Login Required

301 Access Denied

302 Incorrect Login

310 Unknown Project

311 Unknown Folder

312 Unknown Issue

313 Unknown File

314 Unknown User

315 Unknown Type

316 Unknown Attribute

320 Project Already Exists

321 Folder Already Exists

324 User Already Exists

325 Type Already Exists

326 Attribute Already Exists

330 Cannot Delete Project

331 Cannot Delete Folder

335 Cannot Delete Type

340 Invalid String

341 Invalid Access Level

342 Invalid Value

343 Invalid Definition

344 Invalid Preference

350 Feature Not Available

400 Syntax Error

401 Unknown Command

402 Invalid Arguments

403 Upload Error

500 Server Error

501 Database Error