Issues

There are several types of issues we want to identify and report to the users:

Issue Type	Description
Design Error	Design-time properties that can’t be migrated (eg: Form1.LinkTopic.) For these items, we add an entry to the migration log, one entry per property per object. We only add an entry if the value of the property is different than the default value. For example, if Form1.LinkTopic has a value of Form1 (the default,) then no entry is created. The property is not carried forward in the code.
Compile Error	Code that will cause a compile error in .NET (eg: Form1.LinkTopic = “Foo”.) For these items, we copy the original code forward, add an entry to the migration log, and insert an UPGRADE_ISSUE: comment into the code on the line before the error.
ToDo	Code which needs some user intervention. For these, insert an UPGRADE_TODO: comment in the code and add an entry to the migration log.
Note	Code that has been significantly altered, or objects that have some behavior differences with their VB6 equivalents. For these items, insert an UPGRADE_NOTE: comment into the code on the line before the change, but do not add an entry to the log file.
Global Error	User canceled, out of memory, etc. These create one entry in the migration log.
Global Warning	Global issues (eg: Lack of deterministic lifetime.) These create one entry in the migration log.

The following are some of the most common issues generated by our Visual Basic Upgrade Companion.

Code	Description
1002	LSet cannot assign one type to another
1010	The preceding line couldn't be parsed
1014	%1 statement is not supported
1016	Declaring a parameter 'As Any' is not supported
1039	Load statement is not supported
1040	%1 function is not supported
1043	Class instancing was changed to public
1046	%1 Parameter '%2' is not supported, and was removed
1050	Structure %1 may require marshalling attributes to be passed as an argument in this Declare statement
2029	Unload %1 was not upgraded
2036	property . does not support custom mousepointers
2038	Form property %1.ScaleMode is not supported
2042	A string cannot be used to index the %1 control collection
2050	%1 Event %2.%3 was not upgraded.
2059	%1 property %2.NewIndex was not upgraded.
2064	%1 %2 %3.%4 was not upgraded.
2068	%1 %2 was not upgraded.
2069	property . was not upgraded.
2070	Constant %1 was not upgraded.
2072	%1 %2 could not be resolved because it was within the generic namespace %3.
2074	property . was upgraded to . which has a new behavior
6003	%1 %2 was not upgraded.
6012	CommonDialog variable was not upgraded
7003	The Hdc should be released once it is used for safety

Migration Knowledge Base