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  1. Stefan Brinkmann
  2. PLCnext Technology & PLCnext Controls
  3. Wednesday, 13 October 2021
I have an EPC1522. When I try to update or install nodes in node-red with the palette manager, I always get a checksum error. How can this be solved?
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At the momente node-red palette inside EPC is disfunctional and will be fixed soon, you can in any case installa manually:
1. Connect to your EPC via "Putty/SSH" and log in with admin credentials and type in following commands:
2. export PATH=/opt/plcnext/edge/nodejs/bin/:$Path [You only need this command once!!!]
3. cd /opt/plcnext/edge/nodejs/lib
4. npm install NAME_OF_PACKAGE
5. After the installation of the packages are done, you have to restart the device. Those nodes should be visible in Node-RED now.

We did it multiple time and it works!

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