Error in command window

[hjia1005]

I use time series for both rch and evt packages. Below is how I created them

rch=flopy.mf6.modflow.mfgwfrch.ModflowGwfrch(gwf,
                                filename='model.rch',
                                pname='rch',
                                timeseries=ts,
                                stress_period_data=rch_spd_ts) 
rch.ts.initialize(filename="model.rch.ts",
                  timeseries=ts,
                  time_series_namerecord=ts_namerecord,
                  interpolation_methodrecord=["linearend"]*13)
rch.ts.write()
rch.write()

evt=flopy.mf6.modflow.mfgwfevt.ModflowGwfevt(gwf,
                                filename='model.evt',
                                pname='evt',
                                nseg=1,
                                timeseries=ts,
                                stress_period_data=evt_spd_ts) 
evt.ts.initialize(
    filename="model.evt.ts",
    timeseries=ts,
    time_series_namerecord=ts_namerecord,
    interpolation_methodrecord=["linearend"]*13
)
evt.ts.write()
evt.write()

This is how my model packages look like.

They work fine when I run them block by block on a platform (Spyder). But I need it to be run as a stand-alone script for PEST. If I run it in that way, I get the following error:

If I only update one package (RCH or EVT) other than both, then the script also works fine. But I need to calibrate both. I guess there are some conflicts among the child packages with the package name of 'TS_x'. How can I fix it?

[wpbonelli]

@hjia1005 apologies for the late reply here. I tried modifying a test case to remove two different packages both of which were initialized with timeseries, and could not reproduce this. Could you confirm the latest flopy still raises the error? I wonder if it may have been addressed by https://github.com/modflowpy/flopy/commit/8b03916b55fb7a923d13648237147124d77f09f5, which came out with 3.4.2.

If you are still seeing this issue, could you share the full script producing it? That will help get to the bottom of this quickly.

[wpbonelli]

Tentatively closing but please reopen if premature