[AC-6470] URGENT! Titanium module build fail. The "path" argument must be of type string.

An uncaught exception was thrown!
The "path" argument must be of type string. Received type undefined

Operating System
  Name                        = Mac OS X
  Version                     = 10.15.2
  Architecture                = 64bit
  # CPUs                      = 12
  Memory                      = 8589934592

Node.js
  Node.js Version             = 10.18.1
  npm Version                 = 6.13.4

Titanium CLI
  CLI Version                 = 5.2.2

Titanium SDK
  SDK Version                 = 8.2.1.GA
  SDK Path                    = /Users/username/Library/Application Support/Titanium/mobilesdk/osx/8.2.1.GA
  Target Platform             = iphone

Command
/usr/local/bin/node /Users/username/.appcelerator/install/7.1.2/package/node_modules/titanium/lib/titanium.js build --platform ios --log-level info --project-dir /mypath/test2/ios --build-only --config-file /var/folders/qg/ndq6t_0x5xg3v1r5wf8lfcxw0000gn/T/build-1578919034032.json --no-banner --project-dir /mypath/test2/ios

2020-01-13T13:00:54.613Z | TRACE  | TypeError [ERR_INVALID_ARG_TYPE]: The "path" argument must be of type string. Received type undefined
at validateString (internal/validators.js:125:11)
at Object.join (path.js:1147:7)
at iOSModuleBuilder.validate (/Users/username/Library/Application Support/Titanium/mobilesdk/osx/8.3.0.GA/node_modules/node-titanium-sdk/lib/builder.js:141:23)
at iOSModuleBuilder.validate (/Users/username/Library/Application Support/Titanium/mobilesdk/osx/8.3.0.GA/iphone/cli/commands/_buildModule.js:42:29)
at Object.exports.validatePlatformOptions (/Users/username/Library/Application Support/Titanium/mobilesdk/osx/8.3.0.GA/node_modules/node-titanium-sdk/lib/titanium.js:672:70)
at /Users/username/Library/Application Support/Titanium/mobilesdk/osx/8.3.0.GA/cli/commands/build.js:261:23
at /Users/username/Library/Application Support/Titanium/mobilesdk/osx/8.3.0.GA/cli/commands/build.js:472:4
at /Users/username/.appcelerator/install/7.1.2/package/node_modules/node-appc/lib/environ.js:278:4
at ChildProcess.exithandler (child_process.js:285:7)
at ChildProcess.emit (events.js:198:13)