getting an error with merge join and script component transformation

Getting below error when trying to convert BIML to dtsx package

Error    5    SsisEmitter, Version=5.0.64108.0, Culture=neutral, PublicKeyToken=015f370a62f9a1a3. x contains an input column named PhoneAsEntered that can't be matched to an earlier column in the data flow. Please verify that the column names specified correctly match a column introduced earlier in the data flow.        -1    -1
Error    0    FlowFramework, Version=5.0.64108.0, Culture=neutral, PublicKeyToken=015f370a62f9a1a3. Column 'PhoneAsEntered' in input Input 0 for component x could not be located in the available lineage columns.        -1    -1
EmitSsis. Internal Compiler Error: Workflow EmitSsis contains fatal errors. Phase execution halted. For assistance, please send Biml Compiler error messages to support@varigence.com. See other errors for more information. Exception type: NullReferenceException
 

Any help much appreciated