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Error popped up while running PLE study package

Hi, in my attempt to run the PLE study package ,following error popped up.
Error: ‘querySql.ffdf’ is not an exported object from 'namespace:DatabaseConnector’
Here is the complete error report and software details
‘’'Thread: Main
Message: Error: ‘querySql.ffdf’ is not an exported object from ‘namespace:DatabaseConnector’
Level: FATAL
Stack trace:
10: stop(gettextf("’%s’ is not an exported object from ‘namespace:%s’", name, getNamespaceName(ns
9: getExportedValue(pkg, name)
8: DatabaseConnector::querySql.ffdf
7: (function (connection, oracleTempSchema = NULL, cdmDatabaseSchema, cohortTable = "#cohort_per
6: do.call(eval(parse(text = fun)), args)
5: FeatureExtraction::getDbCovariateData(connection = conn, oracleTempSchema = oracleTempSchema,
4: synthesizePositiveControls(connectionDetails = connectionDetails, cdmDatabaseSchema = cdmData
3: MethodEvaluation::injectSignals(connectionDetails = connectionDetails, cdmDatabaseSchema = cd
2: synthesizePositiveControls(connectionDetails = connectionDetails, cdmDatabaseSchema = cdmData
1: execute(connectionDetails = connectionDetails, cdmDatabaseSchema = cdmDatabaseSchema, cohortD

R version:
R version 3.5.3 (2019-03-11)

Platform:
x86_64-pc-linux-gnu

Attached base packages:

  • stats
  • graphics
  • grDevices
  • utils
  • datasets
  • methods
  • base

Other attached packages:

  • tremadol (0.0.1)
  • DatabaseConnector (3.0.0)
    ‘’’
    what could be the possible reason? Any kind of help is much appreciated. Thanks in advance. Peace.

Regards,
HarshaVardhan

Seems like you’re running an old version of the CohortMethod package, but with a new version of DatabaseConnector. Either install the latest version of all packages, or if you’re running an older study, install all the specific versions required for that particular study.

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