LKJCorr initialization error

[junpenglao]

Hi there,
I am suddenly getting error while trying to initialized LKJCorr. For example, if I ran the example code: LKJ_correlation.py, I got the following error:

  File "<ipython-input-4-d7da7646567f>", line 40, in <module>
    corr_triangle = pm.LKJCorr('corr', n=1, p=n_var)

  File "/home/laoj/src/pymc3/pymc3/distributions/distribution.py", line 34, in __new__
    dist = cls.dist(*args, **kwargs)

  File "/home/laoj/src/pymc3/pymc3/distributions/distribution.py", line 45, in dist
    dist.__init__(*args, **kwargs)

  File "/home/laoj/src/pymc3/pymc3/distributions/multivariate.py", line 574, in __init__
    n_elem = int(p * (p - 1) / 2)

TypeError: int() argument must be a string, a bytes-like object or a number, not 'TensorVariable'