Essbase Member Properties for Dimension Builds

When building an Essbase dimension build file, 99% of the time, I will build it using a Parent / Child relationship.  I feel its the easiest to maintain and shared members are added automatically.  Here's a simple example for the Scenario dimension:

Scenario|Actual|+|
Scenario|Budget|~|
Scenario|Forecast|~|
Scenario|Revised Forecast|~|

In case you were wondering what the + and ~ mean or need more properties, here's a good list for you:

Essbase Member Properties for Aggregate Storage Database

% Set consolidation to express as a percentage of current total.
* Set consolidation to multiply by the current total
+ Set consolidation to add to the current total

Essbase EAS Error 1250053

I was recently working with a client that wanted me to take a look at their outline, specifically to optimize MDX member formulas.  They sent over the .otl file and when I opened it up, I received the following error message:

I did some searches and was coming up empty.