First of all, please check whether you are allowed to install applications from unknown sources. Please check "Unknown Sources" in Settings-Security. Only by checking "Unknown Sources" can you install software on your mobile phone through pea pods.
If you are prompted with "signature conflict" when installing the application, please check whether a software with the same name has been installed in your mobile phone. If two software packages have the same name but different signatures, you will encounter the problem of not being installed.
If you are prompted "Error occurred while parsing the program" during installation, please enter the directory of wandoujia/app file, temporarily delete the apk file of the application that you cannot install, and then install the next file again. This usually happens because the file you downloaded has an error and cannot be successfully installed.