nodes resetting does not clear variable, nor field names

KNIME Analytics Platform
1

WARN      SDF Reader                         Errors overwriting node settings with flow variables: Unknown variable "Location"

Problem 1:I copied a SDF reader node, and configured it with a new file. If I open the flow variable tab, there is no entry, but still I get the this error message.

WARN      SDF Reader                         Errors overwriting node settings with flow variables: Unknown variable "Location"

Problem 2:When I use a variable "Location" to read a SDFile, the old fieldnames stay, and I get tables with empty coloumns. The opnly way around is to read a SDFile that has the same field names, as the file that will be read using the variable.

Problem 3: Execute failed: Input table's structure differs from reference (first iteration) table: Column 1 [code (IntCell)] vs. [code (DoubleCell)]. The SDFiles Fields seem to be identical. The concatenation works using the concatenate node, but it does not work using the loop, see below.

 

 

 

2

The first problem is likely because the node is still configured to use the flow variable.  If you open up the FlowVars tab of the configuration dialog, you should be able to reset it.  

For 2 and 3, I think you can get around this by reading in all the SD files with no extra properties, and then using the SDF extractor to extract columns after you read the data. 

3