LibMambaUnsatisfiableError: Encountered problems while solving: - nothing provides openssl >=1.1.1,<1.1.2.0a0 needed by python-2.7.15-h9bab390_2 Could not solve for environment specs The following packages are incompatible ├─ icu ==70.1 h27087fc_0 is requested and can be installed; ├─ libevent ==2.1.10 h28343ad_4 is requested and can be installed; ├─ libgomp ==13.2.0 h807b86a_2 is requested and can be installed; ├─ libstdcxx-ng ==11.2.0 h1234567_1 is requested and can be installed; ├─ matplotlib is installable with the potential options │ ├─ matplotlib [2.0.2|2.1.0|...|2.2.3] would require │ │ └─ python >=2.7,<2.8.0a0 with the potential options │ │ ├─ python [2.7.12|2.7.13|...|2.7.18], which can be installed; │ │ └─ python [2.7.15|3.6.7|3.7.1] would require │ │ └─ openssl >=1.1.1,<1.1.2.0a0 , which does not exist (perhaps a missing channel); │ ├─ matplotlib [2.0.2|2.1.0|...|3.0.0] would require │ │ └─ python >=3.5,<3.6.0a0 , which can be installed; │ ├─ matplotlib [2.0.2|2.1.0|...|3.3.4] would require │ │ └─ python >=3.6,<3.7.0a0 with the potential options │ │ ├─ python [2.7.15|3.6.7|3.7.1], which cannot be installed (as previously explained); │ │ └─ python [3.6.0|3.6.1|...|3.6.9], which can be installed; │ ├─ matplotlib [2.2.2|2.2.3|...|3.5.3] would require │ │ └─ python >=3.7,<3.8.0a0 with the potential options │ │ ├─ python [2.7.15|3.6.7|3.7.1], which cannot be installed (as previously explained); │ │ └─ python [3.7.0|3.7.1|...|3.7.9], which can be installed; │ ├─ matplotlib [3.1.1|3.1.2|3.1.3] would require │ │ ├─ icu >=58.2,<59.0a0 , which conflicts with any installable versions previously reported; │ │ └─ matplotlib-base [3.1.2 py38hef1b27d_1|3.1.3 py38hef1b27d_0], which requires │ │ └─ icu >=58.2,<59.0a0 , which conflicts with any installable versions previously reported; │ ├─ matplotlib 3.2.1 would require │ │ └─ matplotlib-base >=3.2.1,<3.2.2.0a0 with the potential options │ │ ├─ matplotlib-base [3.1.2|3.1.3|3.2.1|3.2.2], which cannot be installed (as previously explained); │ │ ├─ matplotlib-base [2.2.4|3.1.1|...|3.3.0] would require │ │ │ └─ icu >=64.2,<65.0a0 , which conflicts with any installable versions previously reported; │ │ ├─ matplotlib-base [3.2.1|3.2.2|3.3.1|3.3.2|3.3.4] would require │ │ │ └─ python >=3.6,<3.7.0a0 with the potential options │ │ │ ├─ python [2.7.15|3.6.7|3.7.1], which cannot be installed (as previously explained); │ │ │ └─ python [3.6.0|3.6.1|...|3.6.9], which can be installed; │ │ ├─ matplotlib-base [3.2.1|3.2.2|...|3.5.3] would require │ │ │ └─ python >=3.7,<3.8.0a0 with the potential options │ │ │ ├─ python [2.7.15|3.6.7|3.7.1], which cannot be installed (as previously explained); │ │ │ └─ python [3.7.0|3.7.1|...|3.7.9], which can be installed; │ │ ├─ matplotlib-base [2.2.5|3.2.1|...|3.3.4] would require │ │ │ └─ python_abi 3.6.* *_cp36m, which can be installed; │ │ └─ matplotlib-base [2.2.5|3.2.1|...|3.5.3] would require │ │ └─ python_abi 3.7.* *_cp37m, which can be installed; │ ├─ matplotlib 3.2.2 would require │ │ └─ matplotlib-base >=3.2.2,<3.2.3.0a0 with the potential options │ │ ├─ matplotlib-base [3.1.2|3.1.3|3.2.1|3.2.2], which cannot be installed (as previously explained); │ │ ├─ matplotlib-base [2.2.4|3.1.1|...|3.3.0], which cannot be installed (as previously explained); │ │ ├─ matplotlib-base [3.2.1|3.2.2|3.3.1|3.3.2|3.3.4], which can be installed (as previously explained); │ │ ├─ matplotlib-base [3.2.1|3.2.2|...|3.5.3], which can be installed (as previously explained); │ │ ├─ matplotlib-base [2.2.5|3.2.1|...|3.3.4], which can be installed (as previously explained); │ │ ├─ matplotlib-base [2.2.5|3.2.1|...|3.5.3], which can be installed (as previously explained); │ │ ├─ matplotlib-base [3.2.2|3.3.0|...|3.3.4] would require │ │ │ └─ python_abi 3.6 *_pypy36_pp73, which can be installed; │ │ └─ matplotlib-base [2.2.5|3.2.2] would require │ │ └─ icu