Errata of the paper "Cellular chain complexes of universal covers of some 3-manifolds,"
Section 5: $C^*(M;A)$ should be replaced by $C^*(\widetilde{M};A)$.
Example 5.1: The elements $\alpha_i$ should be corrected to $f^*(\alpha)_i$.
Theorem 3.1: In the paragraph preceding Theorem 3.1, the author claimed that "Since $f_*$ is a group isomorphism, there exists a unique element $q_f$ satisfying...". However, this assertion is not always true, even in the case where $T_f$ is a torus bundle. Consequently, Theorem 3.1 is incorrect as stated. The theorem remains valid only under the additional assumption that such an element $q_f$ exists. At present, a general correction for Theorem 3.1 remains unknown.