我正在嘗試安裝一些新軟件包pykg-config以訪問(wèn)大學(xué)作業(yè)所需的功能。當(dāng)我嘗試安裝時(shí)，我得到以下信息：Solving environment: failed with initial frozen solve. Retrying with flexible solve.Collecting package metadata (repodata.json): doneSolving environment: failed with initial frozen solve. Retrying with flexible solve.PackagesNotFoundError: The following packages are not available from current channels:  - pykg-configCurrent channels:  - https://conda.anaconda.org/auto/win-64  - https://conda.anaconda.org/auto/noarch  - https://repo.anaconda.com/pkgs/main/win-64  - https://repo.anaconda.com/pkgs/main/noarch  - https://repo.anaconda.com/pkgs/r/win-64  - https://repo.anaconda.com/pkgs/r/noarch  - https://repo.anaconda.com/pkgs/msys2/win-64  - https://repo.anaconda.com/pkgs/msys2/noarch  - https://conda.anaconda.org/conda-forge/win-64  - https://conda.anaconda.org/conda-forge/noarchTo search for alternate channels that may provide the conda package you'relooking for, navigate to    https://anaconda.organd use the search bar at the top of the page.我正在嘗試安裝 pdftotextpip install pdftotext但出現(xiàn)錯(cuò)誤，指出我需要先安裝此軟件包pykg-config?，F(xiàn)在，當(dāng)我嘗試安裝軟件包時(shí)，pykg-config我再次收到上述錯(cuò)誤，請(qǐng)幫助。