# Troubleshooting Error Message - MxTryHard()

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Joined: 09/10/2021 - 01:09
Troubleshooting Error Message - MxTryHard()

## When it comes to testing the assumptions of equal means and variances, I keep getting the following error message:

Running oneEMVOc with 6 parameters
Error: The job for model 'oneEMVOc' exited abnormally with the error message: fit is not finite (The continuous part of the model implied covariance (loc2) is not positive definite in data 'MZ.data' row 526. Detail:
covariance =  matrix(c(    # 2x2
0.8, 2.37180447958956
, 2.37180447958956, 0.8), byrow=TRUE, nrow=2, ncol=2)
)
In model 'oneEMVOc' Optimizer returned a non-zero status code 10. Starting values are not feasible. Consider mxTryHard()


## I've used mxTryHard and it still will not run

Error in h(simpleError(msg, call)) :
error in evaluating the argument 'x' in selecting a method for function 'print': non-numeric argument to mathematical function


## I also tried changing the start values manually, and I get the same error message listed above.

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Joined: 01/24/2014 - 12:15
start values
covariance =  matrix(c(    # 2x2
0.8, 2.37180447958956
, 2.37180447958956, 0.8), byrow=TRUE, nrow=2, ncol=2)
)

You will definitely need to set the start values such that the off-diagonal elements are no greater than the main diagonal elements.

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Joined: 09/10/2021 - 01:09
Thank you!

Thank you!