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Version: 8.3.2

Error: license key is too old

The "License key validation failed: License key is too old for this version" error can happen when you are using a license that was purchased with a subscription duration which expired before the current library version you are using was released.

Whenever you purchase or renew a LightningChart license, you choose your subscription duration - i.e. how far away in the future will you receive new library versions and technical support.

For any library versions that are released after the end of that subscription you will receive this error if trying to use the old license.

tip

If you encounter this error, it means one of two things:

  1. You need to renew your licenses to utilize the latest library versions
  2. You have already renewed your licenses, in which case you just need to re-download your license key(s) from the Customer Portal

Re-downloading your license keys after renewal​

After renewing your licenses and in order to use the latest library versions, you need to re-download your license keys. For this, please follow instructions here depending on the type of key: