When we were working on our Angular applications, one of the reasons was that we needed to update our Angular version, say from Angular 8 to Angular 9.
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Application upgrade is a tormenting process.
The old version may freeze and make mistakes due to various reasons. It should be noted that after the upgraded version, the old version may have residual cache files, which may threaten the system.
You may need a professional uninstaller to remove the software and clear the cache, try PowerMyMac.
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