运行三变量是没问题的，增加一个解释变量就成这样子了，求指教，不胜感激！！

The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
Mean Group Panel DOLS Estimation
LHS Variable CONS
Individuals 31
Time Periods Unbalanced
Dynamic Lags 1
common time dummies NOT included
RHS Variable H0 Coefficient
INC 1.000000
HP 1.000000
HP1
Member Variable Coefficient t-Statistic
No.1 INC 21.484732 685973148.217488
HP -14.458248-598847337.997923
HP1 -0.517707 NA
No.2 INC 0.938204 -0.000000
HP -0.213085 -0.000000
HP1 -0.138332 NA
No.3 INC 0.166082 -0.000001
HP -0.145527 -0.000001
HP1 0.616008 NA
No.4 INC 129.245907 12450676.524532
HP -166.944670 -12488582.101210
HP1 -4.235136 NA
No.5 INC 0.525169 -230703.104822
HP 0.638166 -748604.359125
HP1 0.144702 NA
No.6 INC 1.607331 18698694.853935
HP -0.701679 -36791383.037159
HP1 -0.023932 NA
No.7 INC -6.015121 -0.000001
HP 8.300872 0.000001
HP1 -0.410102 NA
No.8 INC 2.963461 25942335.046137
HP -2.218731 -33502826.034395
HP1 0.171321 NA
No.9 INC -0.987306 -750663.347012
HP 1.941758 431875.820430
HP1 0.008558 NA
No.10INC 5.074044 78935.447261
HP -3.854044 -91543.946228
HP1 -0.058638 NA
No.11INC 1.412211 6631681.190597
HP 1.125319 3557991.912412
HP1 -0.125659 NA
No.12INC -40.097365 -0.000000
HP 44.814982 0.000000
HP1 -3.301259 NA
No.13INC 0.484367 -0.000000
HP 5.484375 0.000001
HP1 -0.912037 NA
No.14INC 9.288675 4784608.287104
HP -6.972997 -5034013.201629
HP1 0.010602 NA
No.15INC -23.967792 -618284.221060
HP 25.102360 612558.552385
HP1 3.657084 NA
No.16INC -0.252840 -0.000001
HP 2.364152 0.000000
HP1 0.177277 NA
No.17INC 1.832539 189142996.703881
HP -0.455407-348985691.551585
HP1 -0.326903 NA
No.18INC 5.037312 0.000000
HP -1.921323 -0.000000
HP1 0.145671 NA
No.19INC 1.031394 4359970.084508
HP 0.473084 -98299600.984921
HP1 0.039499 NA
No.20INC 2.387736 0.000005
HP -0.500231 -0.000001
HP1 -0.108616 NA
No.21INC 4.017642 0.000000
HP -3.231407 -0.000000
HP1 0.796105 NA
No.22INC 1.291169 10881327.544672
HP 0.348283 -23564698.690620
HP1 0.528922 NA
No.23INC -4.058044 -0.000000
HP -1.773250 -0.000001
HP1 2.559237 NA
No.24INC 22.694064 516095097.741671
HP -13.889274-536442116.318266
HP1 -0.850090 NA
No.25INC 123.907606 21609.642567
HP -16.379851 -30619.689120
HP1 -13.975538 NA
No.26INC 0.759441-508772838.501196
HP 0.232873 -1173016399.232534
HP1 0.768058 NA
No.27INC -0.533180 -0.000002
HP 1.782087 0.000001
HP1 0.174087 NA
No.28INC 2.635682 0.000000
HP -1.726728 -0.000000
HP1 0.065278 NA
No.29INC 0.962067 -38662815.090067
HP 0.077718 -4424281303.362649
HP1 0.122548 NA
No.30INC 0.531178 -0.000000
HP 2.974741 0.000000
HP1 -0.226867 NA
No.31INC -6.268836 -0.000001
HP -5.400272 -0.000002
HP1 -9.060062 NA
*************
GroupINC 8.325727 166319139.366291
HP -4.681482 -1308877642.680623
HP1 -0.783417 NA
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2412 of PANELDOLS
Line 187 of PANELDOLS
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
Mean Group Panel DOLS Estimation
LHS Variable CONS
Individuals 31
Time Periods Unbalanced
Dynamic Lags 1
common time dummies NOT included
RHS Variable H0 Coefficient
INC 1.000000
HP 1.000000
HP1
Member Variable Coefficient t-Statistic
GroupINC 8.325727 166319139.366291
HP -4.681482 -1308877642.680623
HP1 -0.783417 NA
## MAT14. Non-invertible Matrix. Using Generalized Inverse for SYMMETRIC.
The Error Occurred At Location 2432 of PANELDOLS
Line 188 of PANELDOLS