Merge Module no fatal error but reports an error.

[coJeff]

I just created a merge module to handle some development changes. It builds perfectly fine in the IDE. However when I build it using IsCmdBld.exe it kind of reports an error. As far as I can tell the merge module is behaving just fine.

ISDEV : fatal error 0:
Standard\Release - 1 error(s), 0 warning(s)

Why would it say 0 fatal errors but report one error that doesn't appear in the log. I've attached the log below:

================= Logging started at 10/6/2014 04:37:23 PM ==================
Created release folders
Directory table successfully built
Component table successfully built
Loading File table
Building File table
File table successfully built
Building MsiFileHash table
MsiFileHash table successfully built
Class table successfully built
Extension table successfully built
ODBCDataSource table successfully built
ODBCDriver table successfully built
ISSQLScriptFile table successfully built
ISSQLScriptReplace table successfully built
ISSQLConnectionScript table successfully built
ISSQLConnection table successfully built
ISSQLConnectionDBServer table successfully built
ISSQLRequirement table successfully built
ISComPlusProxy table successfully built
ISComPlusApplication table successfully built
ISComCatalogCollection table successfully built
ISComCatalogCollectionObjects table successfully built
ISComCatalogObject table successfully built
ISComCatalogAttribute table successfully built
ISComPlusApplicationDLL table successfully built
ISComPlusServerFile table successfully built
ISComPlusProxyFile table successfully built
ISComPlusServerDepFile table successfully built
ISComPlusProxyDepFile table successfully built
ISXmlFile table successfully built
ISXmlElement table successfully built
ISXmlElementAttrib table successfully built
ISSearchReplaceSet table successfully built
ISSearchReplace table successfully built
AdminExecuteSequence table successfully built
Condition table successfully built
AdminUISequence table successfully built
AdvtExecuteSequence table successfully built
AdvtUISequence table successfully built
AppId table successfully built
AppSearch table successfully built
Property table successfully built
Binary table successfully built
BindImage table successfully built
CompLocator table successfully built
Complus table successfully built
ControlCondition table successfully built
ControlEvent table successfully built
CreateFolder table successfully built
CustomAction table successfully built
DrLocator table successfully built
DuplicateFile table successfully built
Environment table successfully built
EventMapping table successfully built
Font table successfully built
IniFile table successfully built
IniLocator table successfully built
InstallExecuteSequence table successfully built
InstallUISequence table successfully built
ISChainPackage table successfully built
ISChainPackageData table successfully built
ProgId table successfully built
ISComponentExtended table successfully built
ISCustomActionReference table successfully built
ISDRMFile table successfully built
ISFileManifests table successfully built
ISIISItem table successfully built
ISIISProperty table successfully built
ISLockPermissions table successfully built
ISObjectProperty table successfully built
IsolatedComponent table successfully built
ISSelfReg table successfully built
ISSQLDBMetaData table successfully built
ISSQLScriptError table successfully built
ISVirtualDirectory table successfully built
ISVirtualFile table successfully built
ISVirtualPackage table successfully built
ISVirtualRegistry table successfully built
ISVirtualRelease table successfully built
ISVirtualShortcut table successfully built
ISXmlLocator table successfully built
LockPermissions table successfully built
MIME table successfully built
ModuleAdminExecuteSequence table successfully built
ModuleAdminUISequence table successfully built
ModuleAdvtExecuteSequence table successfully built
ModuleAdvtUISequence table successfully built
ModuleComponents table successfully built
ModuleConfiguration table successfully built
ModuleDependency table successfully built
ModuleExclusion table successfully built
ModuleIgnoreTable table successfully built
ModuleSubstitution table successfully built
ModuleInstallExecuteSequence table successfully built
ModuleInstallUISequence table successfully built
ModuleSignature table successfully built
MoveFile table successfully built
MsiAssembly table successfully built
MsiAssemblyName table successfully built
MsiDriverPackages table successfully built
MsiLockPermissionsEx table successfully built
MsiPatchCertificate table successfully built
MsiServiceConfig table successfully built
MsiServiceConfigFailureActions table successfully built
MsiShortcutProperty table successfully built
ODBCAttribute table successfully built
ODBCSourceAttribute table successfully built
ODBCTranslator table successfully built
PublishComponent table successfully built
Registry table successfully built
RegLocator table successfully built
RemoveFile table successfully built
RemoveIniFile table successfully built
RemoveRegistry table successfully built
ReserveCost table successfully built
SelfReg table successfully built
ServiceControl table successfully built
ServiceInstall table successfully built
Shortcut table successfully built
Signature table successfully built
TextStyle table successfully built
TypeLib table successfully built
UIText table successfully built
Verb table successfully built
_Validation table successfully built
Searching project for extract-at-build components...
Building scanned MsiAssembly records
Building scanned MsiAssemblyName records
Resolving strings...
Language English (United States) built
Building .cab files...
MergeModule.CABinet built
Files built
ISDEV : fatal error 0:
Standard\Release - 1 error(s), 0 warning(s)
================= Logging stopped at 10/6/2014 04:37:25 PM ==================

[coJeff]

It appears to have something to do with the properties that I'm passing into the MM. I use the very same properties for the main installer. I verified the properties exist in the MM.

If I pass the following the line below:
-z ProductVersion=2.6.0.109 -z BldLabel=2014-10-06_16-04-49_109 -z buildnum=109 -a Standard -c Release
The result:
ISDEV : fatal error 0:
Standard\Release - 1 error(s), 0 warning(s)

If I pass:
-a Standard -c Release
The result:
Standard\Release - 0 error(s), 0 warning(s)

There is a log file called errors in the build location but the file has no contents.