1026 - Variable '%s' not found for modification.
Description
An attempt was made to modify a variable that was not previously defined.
Example
Config:
.DoesNotExist + 'string'
Output:
c:\Test\fbuild.bff(1):(15) FASTBuild Error #1026 - Variable '.DoesNotExist' not found for modification.
.DoesNotExist + 'string'
^
\--here
Fix:
.Var = ''
.Var + 'string'