If you use PHP 7 you may have problems with upgrade packages for EspoCRM versions before 4.2.0. When you upload upgrade package you will get an error message.
There is an easy workaround for this.
1. Unzip upgrade package.
2. Open manifest.ini and remove all inside "acceptableVersions". It must look the following way:
3. Zip package back.
Now the package can be installed.
There is an easy workaround for this.
1. Unzip upgrade package.
2. Open manifest.ini and remove all inside "acceptableVersions". It must look the following way:
PHP Code:
"acceptableVersions": [
],
Now the package can be installed.