How to fix (app not installed/error parsing packege) ERROR for android devices

I am going to show you that how can you fix the app not installed or error.  parsing packege error on android devices.
First of all download apk editor from the link given bellow:
LINK OF APK EDITOR:
CLICK HERE TO DOWNLOAD APK EDITOR 
Now open the apk editor and select first option(select an apk file)
Then a list of folders will appear, find the apk file you want to install,and select it,then select (simple edit),when it open,click the option (images) from the top right corner,and select disk icon of the first image,by selecting it you will save that photo then click pincle icon of same picture and select the image you saved in last step. Then an option(save) appear  at the bottom of screen.click the (save) option.Now it start loading.it will take some time.when loading complete select (install).and it will be installed.
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             FOR VIDEO TUTORIAL WATCH THE VIDEO GIVEN BELLOW